Heterocyclic steroid compounds

ABSTRACT

The present invention relates to novel substituted 15-oxa-, 15-thia-, and 15-aza- dihydrolanosterols, to pharmaceutical compositions containing such compounds, and to methods of using these compounds to suppress the activity of 3-hydroxy-3- methylglutaryl coenzyme A reductase (HMGR), an enzyme which is important in cholesterol biosynthesis. The overall effect of these heterocyclic lanosterol analogs is to decrease cholesterol formation, thereby resulting in lower serum cholesterol levels in mammals, and impaired ergosterol synthesis in fungi.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation-in-part of our copending application U.S. Ser. No. 07/489,093, filed 5 March 1990 now abandoned, the disclosure of which is hereby incorporated herein by reference.

FIELD OF THE INVENTION

The present invention relates to novel substituted 15-oxa-, 15-thia-, and 15-aza- dihydrolanosterols, to pharmaceutical compositions containing such compounds, and to methods of using these compounds to suppress the activity of 3-hydroxy-3- methylglutaryl coenzyme A reductase (HMGR), an enzyme which is important in sterol biosynthesis. The overall effect of these heterocyclic lanosterol analogs is to decrease sterol formation, thereby resulting in lower serum cholesterol levels in mammals, and impaired ergosterol synthesis in fungi.

STATE OF THE ART

Clinical studies have demonstrated that elevated concentrations of serum cholesterol are a major contributing factor in the development and progression of atherosclerosis, a disease characterized by the formation of cholesterol-containing plaques in the aorta and lesser arteries. These plaques tend to clog the arterial passageways, making it difficult, if not impossible, for blood to flow from the heart to various tissues in the body. This pathobiological condition can ultimately lead to Coronary Heart Disease (CHD). See, e.g., Kannel et al., Ann. Intern. Med., 90: 85-91 (1979); Final Report of the Pooling Project, J. Chron. Dis., 31: 201-306 (1978). By maintaining low cholesterol levels in the blood, arterial plaque formation and CHD can potentially be avoided. See, e.g., Brensike et al., Circulation, 69: 313-324 (1984) and Levy et al., Circulation, 69: 325-336 (1984).

In mammals, serum cholesterol is derived from exogenous dietary sources as well as through endogenous de novo synthesis. Endogenous synthesis of cholesterol involves a complex set of enzyme-catalyzed reactions and regulatory mechanisms which to date are only partially understood. As Rodwell et al., Adv. Lipid Res., 14: 1074 (1976) indicate, HMGR is generally accepted as the rate-limiting enzyme which controls cholesterol biosynthesis from acetyl-CoA in all organisms.

Brown et al., J. Lipid Res., 21: 505-517 (1980) have shown that regulation of HMGR is a complex process which is under a feedback control mechanism involving both steroidal as well as nonsteroidal isoprenoid metabolites. These authors point out that under normal conditions, the ability of cholesterol to regulate its own biosynthesis when associated with lipoprotein particles is one aspect of this feedback control mechanism.

Moreover, it has been demonstrated that various oxygenated sterols, when used in a highly purified state, are even more effective than cholesterol in attenuating the amount of HMGR activity, see Breslow et al., Biochem. Biophys. Acta, 398: 10-17 (1975), Kandutsch et al., J. Biol. Chem., 252: 409-415 (1977), and Chen et al., J. Biol. Chem., 254: 714-720 (1979), leading to the hypothesis that oxysterols may also be endogenous mediators which regulate HMGR activity and cholesterol synthesis in situ. See, Kandutsch et al., Science, 201: 498-501 (1978).

This proposition stimulated considerable research activity. See, e.g., Chen et al., J. Biol. Chem., 254: 715-720 (1979); Havel et al., J. Biol. Chem., 254: 9573-9582 (1979); Chang et al., J. Biol. Chem., 255: 7787-7795 (1980); Chorvat, U.S. Pat. No. 4,230,626 (1980); Gibbons et al., J. Biol. Chem., 255: 395:400, (1980); Kandutsch et al., J. Biol. Chem., 255: 10814-10821 (1980); Cavenee et al., J. Biol. Chem., 256: 2675-2681 (1981); Tanaka et al., J. Biol. Chem., 258: 13331-13339 (1983) and Trzaskos et al., Fed. Proc., 44: 656, (1985). As a result, a number of inhibitors of HMGR activity have been found.

Gibbons et al., J. Biol. Chem., 255: 395-400 (1980), for example, have shown that certain synthetic oxygenated lanosterol derivatives are active inhibitors of HMGR activity. Trzaskos et al., Fed. Proc., 44: 656 (1985) have established that in situ generation of the Gibbons compounds leads to attenuated HMGR activity and decreased cholesterol biosynthesis.

In addition, Schroepfer et al., U. S. Patent No. 4,202,891 and Schroepfer et al., Proc. Natl. Acad. Sci. USA. 81: 6861-6865 (1984) have revealed that other oxygenated lanosterol derivatives may be successfully employed to lower serum cholesterol levels in animals.

INFORMATION DISCLOSURE

Heterocyclic steroid compounds have been prepared in the past. For example, U.S. Pat. Nos. 3,845,203 (Williams et al.); 3,887,433 (Williams et al.); 3,887,564 (Williams et al.); 3,947,453 (Jones); 3,987,055 (Berlin et al.); 3,972,884 (Jones); 4,001,246 (Jones); 4,008,238 (Jones); and 4,039,547 (Chamberlin) are directed to various aza steroid compounds. Oxa steroid derivatives are disclosed in U.S. Pat. Nos. 3,872,076 and 4,053,487 (Rosen), and in Ferland and Lefebfre, Can. J. Chem., 62: 315-319 (1984). Thia steroids are disclosed in Tolstikov et al., Zhurnal Organicheskoi Khimi, 22: 121-132 (1986).

None of the aforementioned heterocyclic steroid compounds are described as having utility against cholesterol biosynthesis. Thus, additional compounds which affect HMGR and/or other enzymes critical to serum cholesterol biosynthesis are needed. The present invention is directed to this end.

SUMMARY OF THE INVENTION

The present invention provides novel substituted 15-oxa-, 15-thia-, and 15-aza-dihydrolanosterol compounds of the formula: ##STR1## wherein the broken lines represent optional double bonds and: R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation;

R₁ is ═O, OR₇ or OCOR₇ ;

R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, arylalkyl;

R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, arylalkyl, C(R₄)₂ R₅, COR₄, CSR₄, C(═NR₄)R₄, COR₅, CSR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ CSR₄, C(R₄)₂ C(═NR₄)R₄, C(R₄)4COR₅, C(R₄)₂ CSR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CR₄ NN(R₄)₂, CR₄ NNR₄ R₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ NHN(R₄)₂, CHR₄ NHNR₄ N₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆ CHR₄ CR₄ NN(R₄)₂, CHR₄ CR₄ NNR₄ R₆ CHR₄ CHR.sub. 4 NHOR₄, CHR₄ CHR₄ NHOR₆, CHR₄ CHR₄ NHN(R₄)₂, C(O)NR₄ OR₄, C(O)NR₄ OR₆, C(S)NR₄ OR₄, C(S)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ Z, C.tbd.CC(R₄)₂ Z, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl;

R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, aryl, arylalkyl;

R₅ is OR₄, SR₄, N(R₄)₂, NR₄ R₆ ;

R₆ is COR₄, CSR₄, C(═NR₄)R₄ ;

R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, aryl, arylalkyl;

X is O, S, SO, SO₂, N, NR₄, NR₆, N(O)R₄ ;

Z is halogen; and

n is 1 or 2;

and their physiologically acceptable salts.

The compounds of Formula I are effective suppressants of 3-hydroxy-3- methylglutaryl coenzyme A reductase (HMGR) activity. By interfering with this enzyme, which is essential in the cholesterol biosynthetic pathway, cholesterol formation is decreased and serum cholesterol levels lowered. Thus, the present invention also includes therapeutic pharmaceutical compositions for suppressing HMGR activity, decreasing cholesterol formation and lowering serum cholesterol levels.

The pharmaceutical compositions comprises (i) an effective amount of a compound of the formula: ##STR2## wherein the broken lines represent optional double bonds and: R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation;

R₁ is ═O, OR₇ or OCOR₇ ;

R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, arylalkyl;

R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, arylalkyl, C(R₄)₂ R₅, COR₄, CSR₄, C(═NR₄)R₄, COR₅, CSR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ CSR₄, C(R₄)₂ C(═NR₄)R₄, C(R₄)₄ COR₅, C(R₄)₂ CRS₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CR₄ NN(R₄)₂, CR₄ NNR₄ R₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ NHN(R₄)₂, CHR₄ NHNR₄ N₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆ CHR₄ CR₄ NN(R₄)₂, CHR₄ CR₄ NNR₄ R₆ CHR₄ CHR.sub. 4 NHOR₄, CHR₄ CHR₄ NHOR₆, CHR₄ CHR₄ NHN(R₄)₂, C(O)NR₄ OR₄, C(O)NR₄ OR₆, C(S)NR₄ OR₄, C(S)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ Z, C.tbd.CC(R₄)₂ Z, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl;

R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, aryl, arylalkyl;

R₅ is OR₄, SR₄, N(R₄)₂, NR₄ R₆ ;

R₆ is COR₄, CSR₄, C(═NR₄)R₄ ;

R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, aryl, arylalkyl;

X is O, S, SO, SO₂, N, NR₄, NR₆ N(O)R₄ ;

Z is halogen; and

n is 1 or 2;

and

(ii) a pharmaceutically acceptable carrier or diluent.

In addition, the present invention encompasses methods for suppressing HMGR activity, decreasing cholesterol formation and lowering serum cholesterol levels comprising administering to a host an effective amount of a compound of the formula: ##STR3## wherein the broken lines represent optional double bonds and: R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation;

R₁ is ═O, OR₇ or OCOR₇ ;

R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl;

R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, CSR₄, C(═NR₄)R₄, COR₅, CSR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ CSR₄, C(R₄)₂ C(═NR₄)R₄, C(R₄)₄ COR₅, C(R₄)₂ CRS₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CR₄ NN(R₄)₂, CR₄ NNR₄ R₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ NHN(R₄)₂, CHR₄ NHNR₄ N₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆ CHR₄ CR₄ NN(R₄)₂, CHR₄ CR₄ NNR₄ R₆ CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, CHR₄ CHR₄ NHN(R₄)₂, C(O)NR₄ OR₄, C(O)NR₄ OR₆, C(S)NR₄ OR₄, C(S)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ Z, C.tbd.CC(R₄)₂ Z, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl;

R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, aryl, benzyl;

R₅ is OR₄, SR₄, N(R₄)₂, NR₄ R₆ ;

R₆ is COR₄, CSR₄, C(═NR₄)R₄ ;

R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, aryl, benzyl;

X is O, S, SO, SO₂, N, NR₄, NR₆, N(O)R₄ ;

Z is halogen; and

n is 1 or 2.

In the above formulae, the R side chain is preferably selected from the cholesterol side chain (C₈ H₁₇) and the ergosterol side chain (C₉ H₁₇). These are generically represented by the formula: ##STR4## where the dashed line represents an optional double bond and the circled alpha-methyl group is likewise optional. However, when the D ring is piperidine or the N-oxide thereof, the R side chain is not an ergosterol side chain.

Likewise, in the above formulae, the ring structure may be unsaturated between carbons 7 and 8 or 8 and 9. When X is N the structure has an additional double bond between C-14 and N and C-14 does not have R₃ substitution.

As used herein, the substituent designated as "poly-(OR₄, OR₅, epoxy) C₁ -C₆ alkyl" shall be taken to mean a C₁ to C₆ alkyl chain substituted with one or more of any combination of OR₄, OR₅ and epoxy.

As used herein, the term "alkyl" employed either alone or in combination with other terms such as "poly-(OR₄, OR₅, epoxy) C₁ -C₆ alkyl" or "arylalkyl", denotes straight chain or branched alkyl, e.g., methyl, ethyl, n-propyl, isopropyl, and the different butyl, pentyl or hexyl isomers.

As used herein, the term "alkynyl", employed either alone or in combination with other terms, denotes straight chain or branched mono- or poly- unsaturated alkyl, e.g., ethynyl, propynyl (propargyl), 2-butynyl isomers, and the different pentynyl, hexadiynyl and hexynyl isomers.

As used herein, the term "acyl", employed either alone or in combination with other terms, denotes a carbonyl group attached to an alkyl, alkenyl, alkynyl, arylalkyl or aryl group e.g. acetate, butyrate, benzoate, and different alkyl, alkenyl, alkynyl, or aryl isomers.

As used herein, the term "halogen" denotes fluorine, chlorine, bromine and iodine.

As used herein the term "physiologically acceptable salts" refers to salts prepared from pharmaceutically acceptable non-toxic acids and/or bases, including inorganic acids/bases and organic acids/bases.

DETAILED DESCRIPTION OF THE INVENTION

The compounds of Formula I can be employed to suppress HMGR activity, decrease cholesterol formation and lower serum cholesterol levels in mammals. These compounds can be administered alone, or in combination with pharmaceutically acceptable carriers or diluents appropriate to the indicated route of administration. Administration can be oral, sublingual, buccal, topical and parenteral such as intravenous, subcutaneous or intramuscular.

Acceptable carriers and diluents are well-known in the pharmaceutical art, and are described, for example, in Remington's Pharmaceutical Sciences, Gennaro, A. R., ed., Mack Publishing Co., Easton, Pa. (1985). The useful dosage to be administered and the mode of administration will vary depending upon the age, weight and species of mammal treated.

While not wishing to be bound to theory or conjecture, a brief description of the mechanism by which the active 15-oxa-, 15-thia-, and 15-aza-dihydro-lanosterol compounds of the present invention are believed to function is as follows.

The observed decrease in HMGR activity is thought to occur as a result of a decreased synthesis of HMGR protein and/or an enhanced rate of HMGR degradation (collectively termed herein as "suppression").

General Procedures for the Preparation of Heterocyclic Lanosterol Derivatives

The compounds of the present invention accommodate the necessary requirements for suppression of HMGR activity. To allow the introduction of various functional groups at 14-position, a strategy, which involves an opening and a reclosing of the D ring of the steroidal structure, was developed. In the schemes and tables which follow, for simplicity, only the cholesterol side chain (C₈ H₁₇) is shown. It is to be understood that the ergosterol side chain (C₉ H₁₇) or modifications of either side chain may be present instead of the illustrated cholesterol side chain.

15-Oxa-Lanosterols

The common intermediate for 15-oxa-, thia- and aza-dihydrolanosterols, the enone-aldehyde 4, has been obtained by an osmium tetroxide hydroxylation on the 8,14-diene (Compound 2) followed by an oxidative cleavage of the resulting diol, Compound 3 (See, Scheme I). ##STR5##

The starting species, Compound 2a, 4-dimethyl-5a-cholesta-8,14-dien-3b-ol, was prepared from 7-dehydrocholesterol (Sigma Chemical Co., P.O. Box 14508, St. Louis, Mo. 63178) by the method described by Bloch and Gautschi in J. Chem. Soc., 223 (6), 1343 (1958). Treatment of the 8,14-dien-3b-ol (2a) with sodium hydride (Alfa Products, P.O. Box 299, Danvers, Mass. 01923) and 4-methoxybenzyl chloride [prepared by the method described by R. L. Schriner and C. J. Hull in J. Org. Chem., 10, 228 (1945)] in 4 parts of tetrahydrofuran and 1 part of N,N-dimethylformamide at 70° C. afforded the corresponding p-methoxybenzyl ether 2b in near quantitative yield. Hydroxylation of the diene 2b with stoichiometric amount of osmium tetroxide (Alfa) in the presence of 10 equivalents of anhydrous pyridine (Aldrich Chemical Co., Inc., 940 West St., Paul Ave., Milwaukee, Wis. 53233) in benzene provided the 14,15-diol in 82% yield. Opening of the steroid D-ring was achieved by reacting the diol 3b with lead tetraacetate (Aldrich, recrystallized from acetic acid) in benzene to give the corresponding tricyclic enone-aldehyde 4b in quantitative yield. Selective conversion of the enone-aldehyde 4b to a dimethyl acetal 5b by with trimethyl orthoformate (Aldrich) and camphorsulfonic acid (Aldrich) in methanol (>95% yield) ensured the functionalization at C-14 without complication at C-15. The necessary functional groups at 14-position were introduced at this stage by adding various nucleophiles to the carbonyl. Diisobutyl aluminum hydride (Aldrich, 1 molar solution in hexane) reduction of the enone 5b in methyl chloride afforded the alcohol 12b in 85% yield.

A methyl group was introduced by a Grignard reaction with methyl magnesium bromide (Aldrich, 3 molar solution in diethyl ether) in diethyl ether to give the tertiary alcohol 6b in above 90% yield.

Similarly a vinyl group was introduced by treating the enone acetal 5b with vinyl magnesium bromide (Alfa, 1.6 molar solution in tetrahydrofuran) in refluxing dry tetrahydrofuran to give the doubly allylic alcohol 18b in near 90% yield.

The steroid D-ring was reclosed to form a six-membered ring with introduction of an oxygen at 14 -position by treating the tertiary alcohol 6b in 80% aqueous acetic acid to provide a 3.3:1 mixture of cyclic hemiacetal 7b and cyclic acetal 7c. The acetal 7c was easily separated form the hemiacetal 7b by column chromatography on silica gel (Kieselgel 60), EM Science, 111 Woodcrest Road, Cherry Hill, N.J. 08034-0395) with elution by 15:85 ethyl acetate-hexane followed by 3:7 ethyl acetate - hexane. The acetal 7c was further hydrolyzed to the hemiacetal 7b by exposing to 80% aqueous acetic acid containing a catalytic amount of 1M - hydrochloric acid (78% overall yield for the hemiacetal from the diene 2b).

For the extrusion of the extra carbon atom to form the five-membered heterocyclic D-ring the hemiacetal 7b was converted to the corresponding glycal 8b by reacting with methanesulfonyl chloride (Aldrich, filtered freshly through basic alumina) in the presence of excess triethylamine (Aldrich, distilled from calcium hydride) in methylene chloride (See, Scheme II).

The intermediate methanesulfonyl ester was eliminated to form the glycal 8b under conventional reaction conditions. Osmium tetroxide hydroxylation of the glycal 8b in benzene containing 10 equivalents of pyridine afforded a diasteromeric mixture of diols 9b. This unstable mixture of diols 9b was reacted with sodium periodate (Aldrich) in 4 parts of diethyl ether, 4 parts of methanol and 1 part of water in the presence of camphorsulfonic acid to give a mixture of p-methoxybenzyl ether of 16-methoxy-15-oxa-dihydrolanosterol 10b and p-methoxybenzyl ether of 16-hydroxy-15-oxa-dihydrolanosterol 10c in about 7:1 ratio. The mixture was then treated with excess triethylsilane (Aldrich) and then redistilled boron trifluoride etherate (Aldrich) in methylene chloride to give the desired 15-oxa-dihydrolanosterol (11a) in 40% overall yield from the compound 7b. The p-methoxy benzyl protecting group at C-3 was conveniently cleaved during this process to afford the free hydroxy compound.

In the same manner the C-14 hydride compound 12b and the C-14 vinyl compound 18b have also been transformed successfully into the corresponding 4,4-dimethyl-15-oxa-5a-cholest-8-en-3b-ol (17a) and 4,4-dimethyl-15-oxa-14a-vinyl-5a-cholest-8-en-3b-ol (23a) in 36% and 50% overall yields respectively. The compounds 17a, 11a, and 23a constitute three examples of 15-oxa-lanosterols within the scope of the present invention.

Exposing the 14a-vinyl-oxa-sterol (23a) to acetic anhydride (Fischer Scientific, Fair Lawn, N.J. 07440) in anhydrous pyridine gave 3b-acetoxy-4,4-dimethyl-15-oxavinyl-lanost-8-ene (23c), a compound within the scope of the present invention, in 81% yield. Esters of other lanosterol derivatives within the scope of the invention may be prepared in this or a similar manner. ##STR6##

Further elaboration at the 14-position was achieved by treating the vinyl compound 23c with osmium tetroxide in pyridine to afford a diastereomeric mixture of diols 24c and 25c (2.84:1) in 45% yield (Scheme III).

The mixture of diols 24c and 25c was reacted with sodium metaperiodate in 4 parts of ethanol and 1 part of water to give 3b-acetoxy-15-oxa-lanost-8-en-32-al (26c) in near quantitative yield. Hydrolysis of the acetate-aldehyde 26c by 3 molar potassium hydroxide afforded the corresponding free hydroxy-aldehyde 26a in near quantitative yield. Reduction of the aldehyde 26a with sodium borohydride (Fischer Scientific) in ethanol afforded 15-oxa-lanost-8-ene-3b, 32-diol (27) in near quantitative yield.

The same chemistry is also applicable to the free hydroxy-vinyl compound 23a to provide 24a, 25a, and 26a directly. Compounds 24a, 24c, 25a, 25c, 26a, 26c and 27 are seven additional examples of 15-oxa-lanosterols within the scope of the present invention. ##STR7##

The aldehyde functional group of the Compound 26 allows further functionalization at the 32-position of lanosterol. A Grignard addition to the aldehyde 26c with vinyl magnesium bromide (Alfa, 1.6 molar solution in tetrahydrofuran) in refluxing tetrahydrofuran provided a diasteromeric mixture of allylic alcohols 28 and 29 (1.4:1) in >95% combined yield. Upon exposing the aldehyde 26a to hydroxylamine hydrochloride (Aldrich) in pyridine at 80°, the corresponding oxime 30 was obtained in quantitative yield. Compounds 28, 29, and 30 constitute three additional examples of 15-oxa- lanosterols within the scope of the present invention. Table 1 sets forth various oxasterols of the present invention.

                                      TABLE 1                                      __________________________________________________________________________      ##STR8##                                                                      Ex. No.                                                                             R.sub.1                                                                               R.sub.2                                                                             R.sub.3          D No.                                                                               M.P.                                    __________________________________________________________________________      1   OH     CH.sub.3                                                                            CH.sub.3         8 11 amorphous*                               2   OH     CH.sub.3                                                                            H                8 17 amorphous*                               3   OH     CH.sub.3                                                                            CHCH.sub.2       8 23a                                                                               amorphous*                               3a  CH.sub.3                                                                              CH.sub.3                                                                            CHCH.sub.2       8 23c                                         4   OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8 24c                                         5   OH     CH.sub.3                                                                            CHOHCH.sub.3 OH(S)                                                                              8 25c                                         6   CH.sub.3 CO                                                                           CH.sub.3                                                                            CHO              8 26c                                                                               amorphous*                               7   OH     CH.sub.3                                                                            CHO              8  2a                                                                               amorphous*                               8   OH     CH.sub.3                                                                            CH.sub.2 OH      8 27                                          9   OH     CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                             10  OH     CH.sub. 3                                                                           CHNOH            8 30 amorphous*                               11  OH     CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8 28 amorphous*                               12  OH     CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8 29 amorphous*                               13  OH     H    CH.sub.3         8 47                                          14  OH     H    H                8                                             15  OH     H    CHCH.sub.2       8                                             16  OH     H    CHOHCH.sub.2 OH(R)                                                                              8                                             17  OH     H    CHOHCH.sub.2 OH(S)                                                                              8                                             18  OH     H    CHO              8                                             19  OH     H    CH.sub.2 OH      8                                             20  OH     H    CO.sub.2 H       8                                             21  OH     H    CO.sub.2 CH.sub.3                                                                               8                                             22  OH     H    CHNOH            8                                             23  OH     H    CHOHCHCH.sub.2 (R)                                                                              8                                             24  OH     H    CHOHCHCH.sub.2 (S)                                                                              8                                             25  OH     CH.sub.3                                                                            C.sub.3 H.sub.5  8                                             26  OH     CH.sub.3                                                                            C.sub.3 H.sub.7  8                                             27  OH     CH.sub.3                                                                            i-C.sub.3 H.sub.9                                                                               8                                             28  OH     CH.sub.3                                                                            C.sub.6 H.sub.13 8                                             29  OH     CH.sub.3                                                                            C.sub.6 H.sub.13 8                                             30  OH     CH.sub.3                                                                            C.sub.6 H.sub.13 8                                             31  OH     CH.sub.3                                                                            CH.sub.2 CHCH.sub.2                                                                             8                                             32  OH     CH.sub.3                                                                            CCH              8                                             33  OH     CH.sub.3                                                                            CH.sub.2 CCH     8                                             34  OH     CH.sub.3                                                                            CH.sub.2 Ph      8                                             35  OH     CH.sub.3                                                                            CHOHCH.sub.3     8                                             36  OH     CH.sub.3                                                                            CHOHCCH          8                                             37  OH     CH.sub.3                                                                            CH.sub.2 OCH.sub.3                                                                              8                                             38  OH     CH.sub.3                                                                            CH.sub.2 OC.sub.2 H.sub.5                                                                       8                                             39  OH     CH.sub.3                                                                            CH.sub.2 OC.sub.3 H.sub.7                                                                       8                                             40  OH     CH.sub.3                                                                            CH.sub.2 OCH.sub.2 CHCH.sub.2                                                                   8                                             41  OH     CH.sub.3                                                                            CH.sub.2 OPh     8                                             42  OH     CH.sub.3                                                                            CH.sub.2 OCOCH.sub.3                                                                            8                                             43  OH     CH.sub.3                                                                            CH.sub.2 SH      8                                             44  OH     CH.sub.3                                                                            CH.sub.2 SCH.sub.3                                                                              8                                             45  OH     CH.sub.3                                                                            CH.sub.2 SC.sub.2 H.sub.5                                                                       8                                             46  OH     CH.sub.3                                                                            CH.sub.2 SPr     8                                             47  OH     CH.sub.3                                                                            CH.sub.2 SCH.sub.2 CHCH.sub.2                                                                   8                                             48  OH     CH.sub.3                                                                            CH.sub.2 SPh     8                                              49 OH     CH.sub.3                                                                            CH.sub.2 SCOH.sub.3                                                                             8                                             50  OH     CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                             51  OH     CH.sub.3                                                                            CH.sub.2 NHCH.sub.3                                                                             8                                             52  OH     CH.sub.3                                                                            CH.sub.2 NHC.sub.2 H.sub.5                                                                      8                                             53  OH     CH.sub.3                                                                            CH.sub.2 NHC.sub.3 H.sub.7                                                                      8                                             54  OH     CH.sub.3                                                                            CH.sub.2 NHi-Pr  8                                             55  OH     CH.sub.3                                                                            CH.sub.2 NHC.sub.6 H.sub.13                                                                     8                                             56  OH     CH.sub.3                                                                            CH.sub.2 NHPh    8                                             57  OH     CH.sub.3                                                                            CH.sub.2 NMe.sub.2                                                                              8                                             58  OH     CH.sub.3                                                                            CH.sub.2 NEt.sub.2                                                                              8                                             59  OH     CH.sub.3                                                                            CH.sub.2 NHCHO   8                                             60  OH     CH.sub.3                                                                            CH.sub.2 NHCOCH.sub.3                                                                           8                                             61  OH     CH.sub.3                                                                            CH.sub.2 NHCSCH.sub.3                                                                           8                                             62  OH     CH.sub.3                                                                            CH.sub.2 NH(CNH)CH.sub.3                                                                        8                                             63  OH     CH.sub.3                                                                            COCH.sub.3       8                                             64  OH     CH.sub.3                                                                            COC.sub.2 H.sub.5                                                                               8                                             65  OH     CH.sub.3                                                                            COC.sub.3 H.sub.7                                                                               8                                             66  OH     CH.sub.3                                                                            COi-C.sub.3 H.sub.7                                                                             8                                             67  OH     CH.sub.3                                                                            COC.sub.6 H.sub.13                                                                              8                                             68  OH     CH.sub.3                                                                            COCHCH.sub.2     8                                              69 OH     CH.sub.3                                                                            COCH.sub.2 CHCH.sub.2                                                                           8                                             70  OH     CH.sub.3                                                                            COCHCHCH.sub.3   8                                             71  OH     CH.sub.3                                                                            COCCH            8                                             72  OH     CH.sub.3                                                                            COCH.sub.2 CCH   8                                             73  OH     CH.sub.3                                                                            COCCCH.sub.3     8                                             74  OH     CH.sub.3                                                                            COPh             8                                             75  OH     CH.sub.3                                                                            CSCH.sub.3       8                                             76  OH     CH.sub.3                                                                            CSC.sub.2 H.sub.5                                                                               8                                             77  OH     CH.sub.3                                                                            CSC.sub.3 H.sub.7                                                                               8                                             78  OH     CH.sub.3                                                                            CSC.sub.3 H.sub.7 (i)                                                                           8                                             79  OH     CH.sub.3                                                                            CSC.sub.6 H.sub.13                                                                              8                                             80  OH     CH.sub.3                                                                            CSCHCH.sub.2     8                                             81  OH     CH.sub.3                                                                            CSCH.sub.2 CHCH.sub.2                                                                           8                                             82  OH     CH.sub.3                                                                            CSCHCHCH.sub.3   8                                             83  OH     CH.sub.3                                                                            CSCCH            8                                             84  OH     CH.sub.3                                                                            CSCH.sub.2 CH    8                                             85  OH     CH.sub.3                                                                            CSCCCH.sub.3     8                                             86  OH     CH.sub.3                                                                            CSPh             8                                             87  OH     CH.sub.3                                                                            C(NH)CH.sub.3    8                                             88  OH     CH.sub.3                                                                            C(NH)C.sub.3 H.sub.7                                                                            8                                             89  OH     CH.sub.3                                                                            C(NH)C.sub.3 H.sub.7                                                                            8                                             90  OH     CH.sub.3                                                                            C(NH)Ph          8                                             91  OH     CH.sub.3                                                                            C(NH)CH.sub.3    8                                             92  OH     CH.sub.3                                                                            C(NCH.sub.3)C.sub.2 H.sub.5                                                                     8                                             93  OH     CH.sub.3                                                                            C(NCH.sub.3)C.sub.3 H.sub.7                                                                     8                                             94  OH     CH.sub.3                                                                            CO.sub.2 C.sub.2 H.sub.5                                                                        8                                             95  OH     CH.sub.3                                                                            CO.sub.2 C.sub.3 H.sub.7                                                                        8                                             96  OH     CH.sub.3                                                                            CO.sub.2 i-C.sub.3 H.sub.7                                                                      8                                             97  OH     CH.sub.3                                                                            CO.sub.2 C.sub.4 H.sub.9                                                                        8                                             98  OH     CH.sub.3                                                                            CO.sub.2 C.sub.6 H.sub.13                                                                       8                                             99  OH     CH.sub.3                                                                            CO.sub.2 CH.sub.2 CHCH.sub.2                                                                    8                                            100  OH     CH.sub.3                                                                            CO.sub.2 Ph      8                                            101  OH     CH.sub.3                                                                            COSCH.sub.3      8                                            102  OH     CH.sub.3                                                                            COSC.sub.2 H.sub.5                                                                              8                                            103  OH     CH.sub.3                                                                            COSC.sub.3 H.sub.7                                                                              8                                            104  OH     CH.sub.3                                                                            COSPh            8                                            105  OH     CH.sub.3                                                                            CONH.sub.2       8                                            106  OH     CH.sub.3                                                                            CONHCH.sub.3     8                                            107  OH     CH.sub.3                                                                            CONHC.sub.2 H.sub.5                                                                             8                                            108  OH     CH.sub.3                                                                            CONHC.sub.3 H.sub.7                                                                             8                                            109  OH     CH.sub.3                                                                            CONHi-C.sub.3 H.sub.7                                                                           8                                            110  OH     CH.sub.3                                                                            CONHC.sub.6 H.sub.13                                                                            8                                            111  OH     CH.sub.3                                                                            CONHPh           8                                            112  OH     CH.sub.3                                                                            CONMe.sub.2      8                                            113  OH     CH.sub.3                                                                            CONEt2           8                                            114  OH     CH.sub.3                                                                            CONPr2           8                                            115  OH     CH.sub.3                                                                            CONHCOCH.sub.3   8                                            116  OH     CH.sub.3                                                                            CONHCOC.sub.2 H.sub.5                                                                           8                                            117  OH     CH.sub.3                                                                            CSNH.sub.2       8                                            118  OH     CH.sub.3                                                                            CSNHCH.sub.3     8                                            119  OH     CH.sub.3                                                                            CSNHC.sub.2 H.sub.5                                                                             8                                            120  OH     CH.sub.3                                                                            CSNHC.sub.3 H.sub.7                                                                             8                                            121  OH     CH.sub.3                                                                            CSNHi-C.sub.3 H.sub.7                                                                           8                                            122  OH     CH.sub.3                                                                            CSNHC.sub.6 H.sub.13                                                                            8                                            123  OH     CH.sub.3                                                                            CSNHPh           8                                            124  OH     CH.sub.3                                                                            CSNMe.sub.2      8                                            125  OH     CH.sub.3                                                                            CSNEt.sub.2      8                                            126  OH     CH.sub.3                                                                            CSNPr2           8                                            127  OH     CH.sub.3                                                                            SCNHCOCH.sub.3   8                                            128  OH     CH.sub.3                                                                            CSNHCOC.sub.2 H.sub.5                                                                           8                                            129  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            130  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)OH                                                                         8                                            131  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OCH.sub.3                                                                     8                                            132  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OC.sub.2 H.sub.5                                                              8                                            133  OH     CH.sub.3                                                                            CH.sub. 2 CH.sub.2 OPh                                                                          8                                            134  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)OCH.sub.3                                                                  8                                            135  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OCOCH.sub.3                                                                   8                                            136  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SH                                                                            8                                            137  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)SH                                                                         8                                            138  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SCH.sub.3                                                                     8                                            139  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SC.sub.2 H.sub.5                                                              8                                            140  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SPh                                                                           8                                            141  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)SCH.sub.3                                                                  8                                            142  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SCOCH.sub.3                                                                   8                                            143  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NH.sub.2                                                                      8                                            144  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)NH.sub.2                                                                   8                                            145  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHCH.sub.3                                                                    8                                            146  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHC.sub.2 H.sub.5                                                             8                                            147  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHPh                                                                          8                                            148  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)NHCH.sub.3                                                                 8                                            149  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NMe.sub.2                                                                     8                                            150  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHCOCH.sub.3                                                                  8                                            151  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3 )NHCOCH.sub.3                                                              8                                            152  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHCSCH.sub.3                                                                  8                                            153  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)NHCSCH.sub.3                                                               8                                            154  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHC(NH)CH.sub.3                                                               8                                            155  OH     CH.sub.3                                                                            CH.sub.2 CH(CH.sub.3)NHC(NH)CH.sub.3                                                            8                                            156  OH     CH.sub.3                                                                            CH.sub.2 CHO     8                                            157  OH     CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            158  OH     CH.sub.3                                                                            CH.sub.2 COC.sub.2 H.sub.5                                                                      8                                            159  OH     CH.sub.3                                                                            CH.sub.2 COCHCH.sub.2                                                                           8                                            160  OH     CH.sub.3                                                                            CH.sub.2 COCH.sub.2 CHCH.sub.2                                                                  8                                            161  OH     CH.sub.3                                                                            CH.sub.2 COCHCHCH.sub.3                                                                         8                                            162  OH     CH.sub.3                                                                            CH.sub.2 COCCH   8                                            163  OH     CH.sub.3                                                                            CH.sub.2 COPh    8                                            164  OH     CH.sub.3                                                                            CH.sub.2 CSCH.sub.3                                                                             8                                            165  OH     CH.sub.3                                                                            CH.sub.2 CSC.sub.2 H.sub.5                                                                      8                                            166  OH     CH.sub.3                                                                            CH.sub.2 CSCHCH.sub.2                                                                           8                                            167  OH     CH.sub.3                                                                            CH.sub.2 CSCH.sub.2 CHCH.sub.2                                                                  8                                            168  OH     CH.sub.3                                                                            CH.sub.2 CSCHCHCH.sub.3                                                                         8                                            169  OH     CH.sub.3                                                                            CH.sub.2 CSC CH  8                                            170  OH     CH.sub.3                                                                            CH.sub.2 CSPh    8                                            171  OH     CH.sub.3                                                                            CH.sub.2 C(NH)CH.sub.3                                                                          8                                            172  OH     CH.sub.3                                                                            CH.sub.2 C(NH)C.sub.2 H.sub.5                                                                   8                                            173  OH     CH.sub.3                                                                            CH.sub.2 C(NCH.sub.3)CH.sub.3                                                                   8                                            174  OH     CH.sub.3                                                                            CH.sub.2 C(NCH.sub.3)C.sub.2 H.sub.5                                                            8                                            175  OH     CH.sub.3                                                                            CH.sub.2 C(NH)Ph 8                                            176  OH     CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            177  OH     CH.sub.3                                                                            CH.sub.2 CO.sub.2 C.sub.2 H.sub.5                                                               8                                            178  OH     CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.2 CHCH.sub.2                                                           8                                            179  OH     CH.sub.3                                                                            CH.sub.2 CO.sub.2 Ph                                                                            8                                            180  OH     CH.sub.3                                                                            CH.sub.2 COSCH.sub.3                                                                            8                                            181  OH     CH.sub.3                                                                            CH.sub.2 COSCH.sub.3                                                                            8                                            181  OH     CH.sub.3                                                                            CH.sub.2 COSC.sub.2 H5                                                                          8                                            182  OH     CH.sub.3                                                                            CH.sub.2 COSPh   8                                            183  OH     CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            184  OH     CH.sub.3                                                                            CH.sub.2 CONHCH.sub.3                                                                           8                                            185  OH     CH.sub.3                                                                            CH.sub.2 CONHC.sub.2 H.sub.5                                                                    8                                            186  OH     CH.sub.3                                                                            CH.sub.2 CONHPh  8                                            187  OH     CH.sub.3                                                                            CH.sub.2 CONMe.sub.2                                                                            8                                            188  OH     CH.sub. 3                                                                           CH.sub.2 CONHCOCH.sub.3                                                                         8                                            189  OH     CH.sub.3                                                                            CH.sub.2 CSNH.sub.2                                                                             8                                            190  OH     CH.sub.3                                                                            CH.sub.2 C(NH)NH.sub.2                                                                          8                                            191  OH     CH.sub.3                                                                            CH.sub.2 Cl      8                                            192  OH     CH.sub.3                                                                            CH.sub.2 Br      8                                            193  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            194  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 Br                                                                            8                                            195  OH     CH.sub.3                                                                            CN               8                                            196  OH     CH.sub.3                                                                            C(CH.sub.3)NOH   8                                            197  OH     CH.sub.3                                                                            CHNOCH.sub.3     8                                            198  OH     CH.sub.3                                                                            CHNOC.sub.2 H.sub.5                                                                             8                                            199  OH     CH.sub.3                                                                            CHNOCOCH.sub.3   8                                            200  OH     CH.sub.3                                                                            CHNNH.sub.2      8                                            201  OH     CH.sub.3                                                                            CNNNHCH.sub.3    8                                            202  OH     CH.sub.3                                                                            CHNNHCOCH.sub.3  8                                            203  OH     CH.sub.3                                                                            CHNNHCSCH.sub.3  8                                            204  OH     CH.sub.3                                                                            CH.sub.2 NHOH    8                                            205  OH     CH.sub.3                                                                            CH.sub.2 NHOCH.sub.3                                                                            8                                            206  OH     CH.sub.3                                                                            CH.sub.2 NHOCOCH.sub.3                                                                          8                                            207  OH     CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            208  OH     CH.sub.3                                                                            CH.sub.2 NHNHCH.sub.3                                                                           8                                            209  OH     CH.sub.3                                                                            CH.sub.2 NHNHCOCH.sub.3                                                                         8                                            210  OH     CH.sub.3                                                                            CH.sub.2 NHNHCSCH.sub.3                                                                         8                                            211  OH     CH.sub.3                                                                            CH.sub.2 CN      8                                            212  OH     CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            213  OH     CH.sub.3                                                                            CH.sub.2 C(CH.sub.3)NOH                                                                         8                                            214  OH     CH.sub.3                                                                            CH.sub.2 CHNOCH.sub.3                                                                           8                                            215  OH     CH.sub.3                                                                            CH.sub.2 CHNOC.sub.2 H.sub.5                                                                    8                                            216  OH     CH.sub.3                                                                            CH.sub.2 CHNOCOCH.sub.3                                                                         8                                            217  OH     CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            218  OH     CH.sub.3                                                                            CH.sub.2 CHNNHCH.sub.3                                                                          8                                            219  OH     CH.sub.3                                                                            CH.sub.2 CHNNHCOCH.sub.3                                                                        8                                            220  OH     CH.sub.3                                                                            CH.sub.2 CHNNHCSCH.sub.3                                                                        8                                            221  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            222  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOCH.sub.3                                                                   8                                            223  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOCOCH.sub.3                                                                 8                                            224  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            225  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNHCH.sub.3                                                                  8                                            226  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNHCOCH.sub.3                                                                8                                            227  OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNHCSCH.sub.3                                                                8                                            228  OH     CH.sub.3                                                                            CONHOH           8                                            229  OH     CH.sub.3                                                                            CONHOCH.sub.3    8                                            230  OH     CH.sub.3                                                                            CONHOC.sub.2 H.sub.5                                                                            8                                            231  OH     CH.sub.3                                                                            CONHOPh          8                                            232  OH     CH.sub.3                                                                            CONHOCOCH.sub.3  8                                            233  OH     CH.sub.3                                                                            CSNHOH           8                                            234  OH     CH.sub.3                                                                            CSNHOCH.sub.3    8                                            235  OH     CH.sub.3                                                                            CSNHOCOCH.sub.3  8                                            236  OH     CH.sub.3                                                                            CHCHCHO          8                                            237  OH     CH.sub.3                                                                            CHCHCOCH.sub.3   8                                            238  OH     CH.sub.3                                                                            CHCHCOC.sub.2 H.sub.5                                                                           8                                            239  OH     CH.sub.3                                                                            CHCHCSCH.sub.3   8                                            240  OH     CH.sub.3                                                                            CHCHCSC.sub.2 H.sub.5                                                                           8                                            241  OH     CH.sub.3                                                                            CHCHCHNH         8                                            242  OH     CH.sub.3                                                                            CHCHC(NH)CH.sub.3                                                                               8                                            243  OH     CH.sub.3                                                                            CCCHO            8                                            244  OH     CH.sub.3                                                                            CCCOCH.sub.3     8                                            245  OH     CH.sub.3                                                                            CCCOC.sub.2 H.sub.5                                                                             8                                            246  OH     CH.sub.3                                                                            CCCSCH.sub.3     8                                            247  OH     CH.sub.3                                                                            CCCSC.sub.2 H.sub.5                                                                             8                                            248  OH     CH.sub.3                                                                            CCCHNH           8                                            249  OH     CH.sub.3                                                                            C CC(NH)CH.sub.3 8                                            250  OH     CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            251  OH     CH.sub.3                                                                            CHCHCH.sub.2 Br  8                                            252  OH     CH.sub.3                                                                            CCCH.sub.2 Cl    8                                            253  OH     CH.sub.3                                                                            CCCH.sub.2 Br    8                                            254  OH     CH.sub.3                                                                            CHCHCH.sub.2 OCOCH.sub.3                                                                        8                                            255  OH     CH.sub.3                                                                            CHCHCH.sub.2 OCOC.sub.2 H.sub.5                                                                 8                                            256  OH     CH.sub.3                                                                            CCCH.sub.2 OCOCH.sub.3                                                                          8                                            257  OH     CH.sub.3                                                                            CCCH.sub.2 OCOC.sub.2 H.sub.5                                                                   8                                            258  OH     CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            259  OH     CH.sub.3                                                                            CHOHCHOHCH.sub.2 OH                                                                             8                                            260  OH     CH.sub.3                                                                             ##STR9##        8                                            261  OH     CH.sub.3                                                                             ##STR10##       8                                            262  OH     CH.sub.3                                                                             ##STR11##       8                                            263  OH     H    C.sub.2 H.sub.5  8                                            264  OH     H    CH.sub.2 CH CH.sub.2                                                                            8                                            265  OH     H    CCH              8                                            266  OH     H    CH.sub.2 Ph      8                                            267  OH     H    CH.sub.2 OCH.sub.3                                                                              8                                            268  OH     H    CH.sub.2 OCOCH.sub.3                                                                            8                                            269  OH     H    CH.sub.2 SH      8                                            270  OH     H    CH.sub.2 SCH.sub.3                                                                              8                                            271  OH     H    CH.sub.2 SCOCH.sub.3                                                                            8                                            272  OH     H    CH.sub.2 NH.sub.2                                                                               8                                            273  OH     H    CH.sub.2 NHCH.sub.3                                                                             8                                            274  OH     H    CH.sub.2 N2(CH.sub.3).sub.2                                                                     8                                            275  OH     H    CH.sub.2 NHCOCH.sub.3                                                                           8                                            276  OH     H    CH.sub.2 NHCSCH.sub.3                                                                           8                                            277  OH     H    CH.sub.2 NHC(NH)CH.sub.3                                                                        8                                            278  OH     H    COCH.sub.3       8                                            279  OH     H    COCHCH.sub.2     8                                            280  OH     H    CSCH.sub.3       8                                            281  OH     H    CSCHCH.sub.2     8                                            282  OH     H    C(NH)CH.sub.3    8                                            283  OH     H    C(NCH.sub.3)CH.sub.3                                                                            8                                            284  OH     H    CO.sub.2 C.sub.2 H.sub.5                                                                        8                                            285  OH     H    COSCH.sub.3      8                                            286  OH     H    CONH.sub.2       8                                            287  OH     H    CONHCH.sub.3     8                                            288  OH     H    CON2(CH.sub.3).sub.2                                                                            8                                            289  OH     H    CONHCOCH.sub.3   8                                            290  OH     H    CSNH.sub.2       8                                            291  OH     H    CSNHCH.sub.3     8                                            292  OH     H    CSNMe.sub.2      8                                            293  OH     H    CSNHCOCH.sub.3   8                                            294  OH     H    CH.sub.2 CH.sub.2 OH                                                                            8                                            295  OH     H    CH.sub.2 CH.sub.2 OCH.sub.3                                                                     8                                            296  OH     H    CH.sub.2 CH.sub.2 OCOCH.sub.3                                                                   8                                            297  OH     H    CH.sub.2 CH.sub.2 SH                                                                            8                                            298  OH     H    CH.sub.2 CH.sub.2 SCH.sub.3                                                                     8                                            299  OH     H    CH.sub.2 CH.sub.2 SCOCH.sub.3                                                                   8                                            300  OH     H    CH.sub.2 CH.sub.2 NH.sub.2                                                                      8                                            301  OH     H    CH.sub.2 CH.sub.2 NHCH.sub.3                                                                    8                                            302  OH     H    CH.sub.3 CH.sub.2 NMe.sub.2                                                                     8                                            303  OH     H    CH.sub.2 CH.sub.2 NHCOCH.sub.3                                                                  8                                            304  OH     H    CH.sub.2 CH.sub.2 NHCSCH.sub.3                                                                  8                                            305  OH     H    CH.sub.2 CH.sub.2 NHC(NH)CH.sub.3                                                               8                                            306  OH     H    CH.sub.2 CHO     8                                            307  OH     H    CH.sub.2 COCH.sub.3                                                                             8                                            308  OH     H    CH.sub.2 COCHCH.sub.2                                                                           8                                            309  OH     H    CH.sub.2 CSCH.sub.3                                                                             8                                            310  OH     H    CH.sub.2 CSCHCH.sub.2                                                                           8                                            311  OH     H    CH.sub.2 C(NH)CH.sub.3                                                                          8                                            312  OH     H    CH.sub.2 C(NCH.sub.3)CH.sub.3                                                                   8                                            313  OH     H    CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            314  OH     H    CH.sub.2 COSCH.sub.3                                                                            8                                            315  OH     H    CH.sub.2 CONH.sub.2                                                                             8                                            316  OH     H    CH.sub.2 CONHCH.sub.3                                                                           8                                            317  OH     H    CH.sub.2 CONMe2  8                                            318  OH     H    CH.sub.2 CONHCOCH.sub.3                                                                         8                                            319  OH     H    CH.sub.2 CSNH.sub.2                                                                             8                                            320  OH     H    CH.sub.2 C(NH)CH.sub.3                                                                          8                                            321  OH     H    CH.sub.2 Cl      8                                            322  OH     H    CH.sub.2 Br      8                                            323  OH     H    CH.sub.2 CH.sub.2 Cl                                                                            8                                            324  OH     H    CH.sub.2 CH.sub.2 Br                                                                            8                                            325  OH     H    CN               8                                            326  OH     H    CHNOCH.sub.3     8                                            327  OH     H    CHNOCOCH.sub.3   8                                            328  OH     H    CHNNH.sub.2      8                                            329  OH     H    CHNNHCH.sub.3    8                                            330  OH     H    CHNNHCOCH.sub.3  8                                            331  OH     H    CHNNHCSCH.sub.3  8                                            332  OH     H    CH.sub.2 NHOH    8                                            333  OH     H    CH.sub.2 NHOCH.sub.3                                                                            8                                            334  OH     H    CH.sub.2 NHOCOCH.sub.3                                                                          8                                            335  OH     H    CH.sub.2 NHNH.sub.2                                                                             8                                            336  OH     H    CH.sub.2 NHNHCH.sub.3                                                                           8                                            337  OH     H    CH.sub.2 NHNHCOCH.sub.3                                                                         8                                            338  OH     H    CH.sub.2 NHNHCSCH.sub.3                                                                         8                                            339  OH     H    CH.sub.2 CN      8                                            340  OH     H    CH.sub.2 CHNOH   8                                            341  OH     H    CH.sub.2 CHNOCH.sub.3                                                                           8                                            342  OH     H    CH.sub.2 CHNOCOCH.sub.3                                                                         8                                            343  OH     H    CH.sub.2 CHNNH.sub.2                                                                            8                                            344  OH     H    CH.sub.2 CHNNHCH.sub.3                                                                          8                                            345  OH     H    CH.sub.2 CHNNHCOCH.sub.3                                                                        8                                            346  OH     H    CH.sub.2 CHNNHCSCH.sub.3                                                                        8                                            347  OH     H    CH.sub.2 CH.sub.2 NHOH                                                                          8                                            348  OH     H    CH.sub.2 CH.sub.2 NHOCH.sub.3                                                                   8                                            349  OH     H    CH.sub.2 CH.sub.2 NHOCOCH.sub.3                                                                 8                                            350  OH     H    CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            351  OH     H    CH.sub.2 CH.sub.2 NHNHCH.sub.3                                                                  8                                            352  OH     H    CH.sub.2 CH.sub.2 NHNHCOCH.sub.3                                                                8                                            353  OH     H    CH.sub.2 CH.sub.2 NHNHCSCH.sub.3                                                                8                                            354  OH     H    CONHOH           8                                            355  OH     H    CONHOCH.sub.3    8                                            356  OH     H    CONHOCOCH.sub.3  8                                            357  OH     H    CSNHOH           8                                            358  OH     H    CSNHOCH.sub.3    8                                            359  OH     H    CSNHOCOCH.sub.3  8                                            360  OH     H    CHCHCHO          8                                            361  OH     H    CHCHCOCH.sub.3   8                                            362  OH     H    CHCHCSCH.sub.3   8                                            363  OH     H    CHCHCHNH         8                                            364  OH     H    CH CHC(NH)CH.sub.3                                                                              8                                            365  OH     H    CHCCHO           8                                            366  OH     H    CCCOCH.sub.3     8                                            367  OH     H    CCCSCH.sub.3     8                                            368  OH     H    CCCHNH                                                        369  OH     H    CCC(NH)CH.sub.3  8                                            370  OH     H    CHCHCH.sub.2 Cl  8                                            371  OH     H    CHCHCH.sub.2 Br  8                                            372  OH     H    CCCH.sub.2 Cl    8                                            373  OH     H    CCCH.sub.2 Br    8                                            374  OH     H    CHCHCH.sub.2 OCOCH.sub.3                                                                        8                                            375  OH     H    CCCH.sub.2 OCOCH.sub.3                                                                          8                                            376  OH     H    CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            377  OH     H    CHOHCHOHCH.sub.2 OH                                                                             8                                            378  OH     H                                                                                    ##STR12##       8                                            379  OH     H                                                                                    ##STR13##       8                                            380  OH     H                                                                                    ##STR14##       8                                            381  O      CH.sub.3                                                                            CH.sub.3         8                                            382  O      CH.sub.3                                                                            H                8                                            383  O      CH.sub.3                                                                            CHCH.sub.2       8                                            384  O      CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8                                            385  O      CH.sub.3                                                                            CHOHCH.sub.2 OHO(S)                                                                             8                                            386  O      CH.sub.3                                                                            CHO              8                                            387  O      CH.sub.3                                                                            CH.sub.2 OH      8                                            388  O      CH.sub.3                                                                            CO.sub.2 H       8                                            389  O      CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                            390  O      CH.sub.3                                                                            CHNOH            8                                            391  O      CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                            392  O      CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8                                            393  O      CH.sub.3                                                                            CH.sub.2 SH      8                                            394  O      CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                            395  O      CH.sub.3                                                                            COCH.sub.3       8                                            396  O      CH.sub.3                                                                            CONH.sub.2       8                                            397  O      CH.sub.3                                                                            CSNH.sub.2       8                                            398  O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            399  O      CH.sub.3                                                                            CH.sub.2 CHO     8                                            400  O      CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            401  O      CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            402  O      CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            403  O      CH.sub.3                                                                            CH.sub.2 Cl      8                                            404  O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            405  O      CH.sub.3                                                                            CN               8                                            406  O      CH.sub.3                                                                            CHNNH.sub.2      8                                            407  O      CH.sub.3                                                                            CH.sub.2 NHOH    8                                            408  O      CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            409  O      CH.sub.3                                                                            CH.sub.2 CN      8                                            410  O      CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            411  O      CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            412  O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            413  O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            414  O      CH.sub.3                                                                            CONHOH           8                                            415  O      CH.sub.3                                                                            CHCHCHO          8                                            416  O      CH.sub.3                                                                            CHCHCOCH.sub.3   8                                            417  O      CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            418  O      CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            419  O      CH.sub.3                                                                             ##STR15##       8                                            420  O      H    CH.sub. 3        8                                            421  O      H    H                8                                            422  O      H    CHCH.sub.2       8                                            423  O      H    CHOHCH.sub.2 OH(R)                                                                              8                                            424  O      H    CHOHCH.sub.2 OH(S)                                                                              8                                            425  O      H    CHO              8                                            426  O      H    CH.sub.2 OH      8                                            427  O      H    CO.sub.2 H       8                                            428  O      H    CO.sub.2 CH.sub.3                                                                               8                                            429  O      H    CHNOH            8                                            430  O      H    CHOHCHCH.sub.2 (R)                                                                              8                                            431  O      H    CHOHCHCH.sub.2 (S)                                                                              8                                            432  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.3         8                                            433  OCH.sub.3                                                                             CH.sub.3                                                                            H                8                                            434  OCH.sub.3                                                                             CH.sub.3                                                                            CHCH.sub.2       8                                            435  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8                                            436  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              8                                            437  OCH.sub.3                                                                             CH.sub.3                                                                            CHO              8                                            438  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 OH      8                                            439  OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.3 H       8                                            440  OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                            441  OCH.sub.3                                                                             CH.sub.3                                                                            CHNOH            8                                            442  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                            443  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8                                            444  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 SH      8                                            445  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                            446  OCH.sub.3                                                                             CH.sub.3                                                                            COCH.sub.3       8                                            447  OCH.sub.3                                                                             CH.sub.3                                                                            CONH.sub.2       8                                            448  OCH.sub.3                                                                             CH.sub.3                                                                            CSNH.sub.2       8                                            449  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            450  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHO     8                                            451  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            452  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            453  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            454  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 Cl      8                                            455  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            456  OCH.sub.2                                                                             CH.sub.3                                                                            CN               8                                            457  OCH.sub.3                                                                             CH.sub.3                                                                            CHNNH.sub.2      8                                            458  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 NHOH    8                                            459  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            460  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CN      8                                            461  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            462  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            463  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            464  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub. 2 NHNH.sub.2                                                                   8                                            465  OCH.sub.3                                                                             CH.sub.3                                                                            CONHOH           8                                            466  OCH.sub.3                                                                             CH.sub.3                                                                            CHCHCHO          8                                            467  OCH.sub.2                                                                             CH.sub.3                                                                            CHCOCH.sub.3     8                                            468  OCH.sub.3                                                                             CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            469  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            470  OCH.sub.3                                                                             CH.sub.3                                                                             ##STR16##       8                                            471  OCH.sub.3                                                                             H    CH.sub.3         8                                            472  OCH.sub.3                                                                             H    H                8                                            473  OCH.sub.3                                                                             H    CHCH.sub.2       8                                            474  OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(R)                                                                              8                                            475  OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(S)                                                                              8                                            476  OCH.sub.3                                                                             H    CHO              8                                            477  OCH.sub.3                                                                             H    CH.sub.2 OH      8                                            478  OCH.sub.3                                                                             H    CO.sub.2 H       8                                            479  OCH.sub.3                                                                             H    CO.sub.2 CH.sub.3                                                                               8                                            480  OCH.sub.3                                                                             H    CHNOH            8                                            481  OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (R)                                                                              8                                            482  OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (S)                                                                              8                                            483  OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                            CH.sub.3         8                                            484  OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                            CHO              8                                            485  OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                            CH.sub.2 OH      8                                            486  OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                            CH.sub.3         8                                            487  OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                            CHO              8                                            488  OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                            CH.sub.2 OH      8                                            489  Oi-C.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CH.sub.3         8                                            490  OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                            CH.sub.3         8                                            491  OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                            CHO              8                                            492  OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                            CH.sub.2 OH      8                                            493  Oi-C.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.3         8                                            494  Ot-C.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.3         8                                            495  OPh    CH.sub.3                                                                            CH.sub.3         8                                            496  OPh    CH.sub.3                                                                            CHO              8                                            497  OPh    CH.sub.3                                                                            CH.sub.2 OH      8                                            498  OCH.sub.2 Ph                                                                          CH.sub.3                                                                            CH.sub.3         8                                            499  OCH.sub.2 Ph                                                                          CH.sub.3                                                                            CHO              8                                            500  OCH.sub.2 Ph                                                                          CH.sub.3                                                                            CH.sub.2 OH      8                                            501  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.3         8                                            502  OCOCH.sub.3                                                                           CH.sub.3                                                                            H                8                                            503  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCH.sub.2       8 23c                                                                               amorphous*                              504  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8 24c                                                                               amorphous*                              505  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              8 25c                                                                               amorphous*                              506  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHO              8 26c                                                                               amorphous*                              507  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 OH      8                                            508  OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 H       8                                            509  OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                            510  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHNOH            8                                            511  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                            512  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8                                            513  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 SH      8                                            514  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                            515  OCOCH.sub.3                                                                           CH.sub.3                                                                            COCH.sub.3       8                                            516  OCOCH.sub.3                                                                           CH.sub.3                                                                            CONH.sub.2       8                                            517  OCOCH.sub.3                                                                           CH.sub.3                                                                            CSNH.sub.2       8                                            518  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            519  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHO     8                                            520  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            521  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            522  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            523  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 Cl      8                                            524  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            525  OCOCH.sub.3                                                                           CH.sub.3                                                                            CN               8                                            526  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHNNH.sub.2      8                                            527  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 NHOH    8                                            528  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            529  OCOCH.sub. 3                                                                          CH.sub.3                                                                            CH.sub.2 CN      8                                            530  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            531  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            532  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            533  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            534  OCOCH.sub.3                                                                           CH.sub.3                                                                            CONHOH           8                                            535  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCHCHO          8                                            536  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCHCOCH.sub.3   8                                            537  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            538  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            539  OCOCH.sub.3                                                                           CH.sub.3                                                                             ##STR17##       8                                            540  OCOCH.sub.3                                                                           H    CH.sub.3         8                                            541  OCOCH.sub.3                                                                           H    H                8                                            542  OCOCH.sub.3                                                                           H    CHCH.sub.2       8                                            543  OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(R)                                                                              8                                            544  OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(S)                                                                              8                                            545  OCOCH.sub.3                                                                           H    CHO              8                                            546  OCOCH.sub.3                                                                           H    CH.sub.2 OH      8                                            547  OCOCH.sub.3                                                                           H    CO.sub.2 H       8                                            548  OCOCH.sub.3                                                                           H    CO.sub.2 CH.sub.3                                                                               8                                            549  OCOCH.sub.3                                                                           H    CHNOH            8                                            550  OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (R)                                                                              8                                            551  OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (S)                                                                              8                                            552  OCOCH.sub.2 H.sub.5                                                                   CH.sub.3                                                                            CH.sub.3         8                                            553  OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                            CHO              8                                            554  OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                            CH.sub.2 OH      8                                            555  OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CH.sub.3         8                                            556  OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CHO              8                                            557  OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CH.sub.2 OH      8                                            558  OCOi-C.sub.3 H.sub.7                                                                  CH.sub.3                                                                            CH.sub.3         8                                            559  OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.3         8                                            560  OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CHO              8                                            561  OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.2 OH      8                                            562  OCOi-C.sub.4 H.sub.9                                                                  CH.sub.3                                                                            CH.sub.3         8                                            563  OCOt-C.sub.4 H.sub.9                                                                  CH.sub.3                                                                            CH.sub.3         8                                            564  OCOC15H.sub.31                                                                        CH.sub.3                                                                            CH.sub.3         8                                            565  OCOC15H.sub.31                                                                        CH.sub.3                                                                            CHO              8                                            566  OCOC15H.sub.31                                                                        CH.sub.3                                                                            CH.sub.2 OH      8                                            567  OCOC15H.sub.29                                                                        CH.sub.3                                                                            CH.sub.3         8                                            568  OCOC17H.sub.35                                                                        CH.sub.3                                                                            CH.sub.3         8                                            569  OCOC17H.sub.33                                                                        CH.sub.3                                                                            CH.sub.3         8                                            570  OCOC17H.sub.31                                                                        CH.sub.3                                                                            CH.sub.3         8                                            571  OCOC17H.sub.29                                                                        CH.sub.3                                                                            CH.sub.3         8                                            572  OCOC19H.sub.31                                                                        CH.sub.3                                                                            CH.sub. 3        8                                            573  OCOPh  CH.sub.3                                                                            CH.sub.3         8                                            574  OCOPh  CH.sub.3                                                                            CHO              8                                            575  OCOPh  CH.sub.3                                                                            CH.sub.2 OH      8                                            576  OH     CH.sub.3                                                                            CH.sub.3         7                                            577  OH     CH.sub.3                                                                            H                7                                            578  OH     CH.sub.3                                                                            CHCH.sub.2       7                                            579  OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            580  OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            581  OH     CH.sub.3                                                                            CHO              7                                            582  OH     CH.sub.3                                                                            CH.sub.2 OH      7                                            583  OH     CH.sub.3                                                                            CO.sub.2 H       7                                            584  OH     CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            585  OH     CH.sub.3                                                                            CHNOH            7                                            586  OH     CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            587  OH     CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            588  OH     H    CH.sub.3         7                                            589  OH     H    H                7                                            590  OH     H    CHCH.sub.2       7                                            591  OH     H    CHOHCH.sub.2 OH(R)                                                                              7                                            592  OH     H    CHOHCH.sub.2 OH(S)                                                                              7                                            593  OH     H    CHO              7                                            594  OH     H    CH.sub.2 OH      7                                            595  OH     H    CO.sub.2 H       7                                            596  OH     H    CO.sub.2 CH.sub.3                                                                               7                                            597  OH     H    CHNOH            7                                            598  OH     H    CHOHCHCH.sub.2 (R)                                                                              7                                            599  OH     H    CHOHCH CH.sub.2 (S)                                                                             7                                            600  O      CH.sub.3                                                                            CH.sub.3         7                                            601  O      CH.sub.3                                                                            H                7                                            602  O      CH.sub.3                                                                            CHCH.sub.2       7                                            603  O      CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            604  O      CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            605  O      CH.sub.3                                                                            CHO              7                                            606  O      CH.sub.3                                                                            CH.sub.2 OH      7                                            607  O      CH.sub.3                                                                            CO.sub.2 H       7                                            608  O      CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            609  O      CH.sub.3                                                                            CHNOH            7                                            610  O      CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            611  O      CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            612  O      H    CH.sub.3         7                                            613  O      H    H                7                                            614  O      H    CHCH.sub.2       7                                            615  O      H    CHOHCH.sub.2 OH(R)                                                                              7                                            616  O      H    CHOHCH.sub.2 OH(S)                                                                              7                                            617  O      H    CHO              7                                            618  O      H    CH.sub.2 OH      7                                            619  O      H    CO.sub.2 H       7                                            620  O      H    CO.sub.2 CH.sub.3                                                                               7                                            621  O      H    CHNOH            7                                            622  O      H    CHOHCHCH.sub.2 (R)                                                                              7                                            623  O      H    CHOHCHCH.sub.2 (S)                                                                              7                                            624  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.3         7                                            625  OCH.sub.3                                                                             CH.sub.3                                                                            H                7                                            626  OCH.sub.3                                                                             CH.sub.3                                                                            CHCH.sub.2       7                                            627  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            628  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            629  OCH.sub.3                                                                             CH.sub.3                                                                            CHO              7                                            630  OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 OH      7                                            631  OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 H       7                                            632  OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            633  OCH.sub.3                                                                             CH.sub.3                                                                            CHNOH            7                                            634  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            635  OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            636  OCH.sub.3                                                                             H    CH.sub.3         7                                            637  OCH.sub.3                                                                             H    H                7                                            638  OCH.sub.3                                                                             H    CHCH.sub.2       7                                            639  OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(R)                                                                              7                                            640  OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(S)                                                                              7                                            641  OCH.sub.3                                                                             H    CHO              7                                            642  OCH.sub.3                                                                             H    CH.sub.2 OH      7                                            643  OCH.sub.3                                                                             H    CO.sub.2 H       7                                            644  OCH.sub.3                                                                             H    CO.sub.2 CH.sub.3                                                                               7                                            645  OCH.sub.3                                                                             H    CHNOH            7                                            646  OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (R)                                                                              7                                            647  OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (S)                                                                              7                                            648  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.3         7                                            649  OCOCH.sub.3                                                                           CH.sub.3                                                                            H                7                                            650  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCH.sub.2       7                                            651  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            652  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            653  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHO              7                                            654  OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 OH      7                                            655  OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 H       7                                            656  OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            657  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHNOH            7                                            658  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            659  OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            660  OCOCH.sub.3                                                                           H    CH.sub.3         7                                            661  OCOCH.sub.3                                                                           H    H                7                                            662  OCOCH.sub.3                                                                           H    CHCH.sub.2       7                                            663  OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(R)                                                                              7                                            664  OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(S)                                                                              7                                            665  OCOCH.sub.3                                                                           H    CHO              7                                            666  OCOCH.sub.3                                                                           H    CH.sub.2 OH      7                                            667  OCOCH.sub.3                                                                           H    CO.sub.2 H       7                                            668  OCOCH.sub.3                                                                           H    CO.sub.2 CH.sub.3                                                                               7                                            669  OCOCH.sub.3                                                                           H    CHNOH            7                                            670  OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (R)                                                                              7                                            671  OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (S)                                                                              7                                            __________________________________________________________________________      *Further analytical data are available in the examples section           

The six-membered 15-oxa-D-homo-lanosterol derivatives are synthesized by reducing the six-membered cyclic acetals and hemiacetals under conditions similar as those used for the five-membered 15-oxa-lanosterols. However, the entire sequence was carried out more conveniently in higher overall yield without the protecting group at the 3-position. Thus the unprotected 8,14-diene 2a was converted to a mixture of six-membered cyclic acetal 7a in the same manner as described earlier for p-methoxybenzyl protected intermediates (Scheme I). The cyclic hemiacetal 7a was treated with triethylsilane and redistilled boron trifluoride etherate in methylene chloride to afford 15-oxa-D-homo-dihydrolanosterol (31) in 92% yield (See, Scheme IV). The corresponding cyclic acetal 7d is also converted to the compound 31 in slightly lower yield than the acetal 7a.

4,4-Dimethyl-15-oxa-D-homo-5a-cholest-8-en-3b-ol (32) and 4,4-dimethyl-15-oxa- 14a-vinyl-5a-cholest-8-en-3b-ol (33) have also been prepared in the same manner through the secondary alcohol 6a and the doubly allylic alcohol 8a respectively in comparable yields. Compounds 31, 32, and 33 are all within the scope of the present invention. ##STR18##

For further functionalization at the 14-position, the vinyl compound 33 was converted to a 1:1 mixture of diasteromeric diols 34 and 35 in 84% combined yield by reacting with osmium tetroxide as described earlier for five-membered 15-oxa-lanosterols. The mixture of diols 34 and 35 was treated with sodium metaperiodate in 4 parts of ethanol and 1 part of water to give 15-oxa-32-oxo-D-homo-dihydrolanosterol (36) in near quantitative yield. Reduction of the aldehyde 36 with sodium borohydride in ethanol provided 15-oxa-D-homo-lanost-8-ene-3b-32-diol (37) in near quantitative yield. Compounds 34, 35, 36 and 37 also constitute four additional examples of 15-oxa-lanosterols within the scope of the present invention.

Elaborations of the aldehyde 36 may yield the corresponding oxime, allylic alcohol, etc., which are within the scope of the present invention, as described in the synthesis of five-membered 15-oxa-lanosterols.

Table 2 sets forth additional oxasterols of the present invention.

                                      TABLE 2                                      __________________________________________________________________________      ##STR19##                                                                     Ex. No.                                                                              R.sub.1 R.sub.2                                                                            R.sub.3      D  No. M.P.                                     __________________________________________________________________________     672   OH      CH.sub.3                                                                           CH.sub.3     8  31  amorphous*                               673   OH      CH.sub.3                                                                           H            8  32  amorphous*                               674   OH      CH.sub.3                                                                           CHCH.sub.2   8  32  amorphous*                               675   OH      CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                          8  34  amorphous*                               676   OH      CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                          8  35  amorphous*                               677   OH      CH.sub.3                                                                           CHO          8  36  amorphous*                               678   OH      CH.sub.3                                                                           CH.sub.2 OH  8  37  amorphous*                               679   OH      CH.sub.3                                                                           CO.sub.2 H   8                                               680   OH      CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                           8                                               681   OH      CH.sub.3                                                                           CHNOH        8                                               682   OH      CH.sub.3                                                                           CHOHCHCH.sub.2(R)                                                                           8                                               683   OH      CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                           8                                               684   OH      H   CH.sub.3     8                                               685   OH      H   H            8                                               686   OH      H   CHCH.sub.2   8                                               687   OH      H   CHOHCH.sub.2 OH(R)                                                                          8                                               689   OH      H   CHOHCH.sub.2 OH(S)                                                                          8                                               690   OH      H   CHO          8                                               691   OH      H   CH.sub.2 OH  8                                               692   OH      H   CO.sub.2 H   8                                               693   OH      H   CO.sub.2 CH.sub.3                                                                           8                                               694   OH      H   CHNOH        8                                               695   OH      H   CHOHCHCH.sub.2(R)                                                                           8                                               696   OH      H   CHOHCHCH.sub.2(S)                                                                           8                                               697   OH      CH.sub.3                                                                           CH.sub.2 SH  8                                               698   OH      CH.sub.3                                                                           CH.sub.2 NH.sub.2                                                                           8                                               699   OH      CH.sub.3                                                                           COCH.sub.3   8                                               700   OH      CH.sub.3                                                                           CONH.sub.2   8                                               701   OH      CH.sub.3                                                                           CSNH.sub.2   8                                               702   OH      CH.sub.3                                                                           CH.sub.2 CH.sub.2 OH                                                                        8                                               703   OH      CH.sub.3                                                                           CH.sub.2 CHO 8                                               704   OH      CH.sub.3                                                                           CH.sub.2 COCH.sub.3                                                                         8                                               705   OH      CH.sub.3                                                                           CH.sub.2 CO.sub.2 CH.sub.3                                                                  8                                               706   OH      CH.sub.3                                                                           CH.sub.2 CONH.sub.2                                                                         8                                               707   OH      CH.sub.3                                                                           CH.sub.2 Cl  8                                               708   OH      CH.sub.3                                                                           CH.sub.2 CH.sub.2 Cl                                                                        8                                               709   OH      CH.sub.3                                                                           CN           8                                               710   OH      CH.sub.3                                                                           CHNNH.sub.2  8                                               711   OH      CH.sub.3                                                                           CH.sub.2 NHOH                                                                               8                                               712   OH      CH.sub.3                                                                           CH.sub.2 NHNH.sub.2                                                                         8                                               713   OH      CH.sub.3                                                                           CH.sub.2 CN  8                                               714   OH      CH.sub.3                                                                           CH.sub.2 CHNOH                                                                              8                                               715   OH      CH.sub.3                                                                           CH.sub.2 CHNNH.sub.2                                                                        8                                               716   OH      CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHOH                                                                      8                                               717   OH      CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHNH.sub.2                                                                8                                               718   OH      CH.sub.3                                                                           CONHOH       8                                               719   OH      CH.sub.3                                                                           CHCHCHO      8                                               720   OH      CH.sub.3                                                                           CHCHCOCH.sub.3                                                                              8                                               721   OH      CH.sub.3                                                                           CHCHCH.sub.2 Cl                                                                             8                                               722   OH      CH.sub.3                                                                           CH.sub.2 CHOHCH.sub.2 OH                                                                    8                                               723   OH      CH.sub.3                                                                            ##STR20##   8                                               724   O       CH.sub.3                                                                           CH.sub.3     8                                               725   O       CH.sub.3                                                                           H            8                                               726   O       CH.sub.3                                                                           CHCH.sub.2   8                                               727   O       CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                          8                                               728   O       CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                          8                                               729   O       CH.sub.3                                                                           CHO          8                                               730   O       CH.sub.3                                                                           CH.sub.2 OH  8                                               731   O       CH.sub.3                                                                           CO.sub.2 H   8                                               732   O       CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                           8                                               733   O       CH.sub.3                                                                           CHNOH        8                                               734   O       CH.sub.3                                                                           CHOHCHCH.sub.2 O(R)                                                                         8                                               735   O       CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                           8                                               736   O       H   CH.sub.3     8                                               737   O       H   H            8                                               738   O       H   CHCH.sub.2   8                                               739   O       H   CHOHCH.sub.2 OH(R)                                                                          8                                               740   O       H   CHOHCH.sub.2 OH(S)                                                                          8                                               741   O       H   CHO          8                                               742   O       H   CH.sub.2 OH  8                                               743   O       H   CO.sub.2 H   8                                               744   O       H   CO.sub.2 CH.sub.3                                                                           8                                               745   O       H   CHNOH        8                                               746   O       H   CHOHCHCH.sub.2(R)                                                                           8                                               747   O       H   CHOHCHCH.sub.2(S)                                                                           8                                               748   OCH.sub.3                                                                              CH.sub.3                                                                           CH.sub.3     8                                               749   OCH.sub.3                                                                              CH.sub.3                                                                           H            8                                               750   OCH.sub.3                                                                              CH.sub.3                                                                           CHCH.sub.2   8                                               751   OCH.sub.3                                                                              CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                          8                                               752   OCH.sub.3                                                                              CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                          8                                               753   OCH.sub.3                                                                              CH.sub.3                                                                           CHO          8                                               754   OCH.sub.3                                                                              CH.sub.3                                                                           CH.sub.2 OH  8                                               755   OCH.sub.3                                                                              CH.sub.3                                                                           CO.sub.2 H   8                                               756   OCH.sub.3                                                                              CH.sub.3                                                                           CO.sub.2 CH.sub. 3                                                                          8                                               757   OCH.sub.3                                                                              CH.sub.3                                                                           CHNOH        8                                               758   OCH.sub.3                                                                              CH.sub.3                                                                           CHOHCHCH.sub.2(R)                                                                           8                                               759   OCH.sub.3                                                                              CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                           8                                               760   OCH.sub.3                                                                              H   CH.sub.3     8                                               761   OCH.sub.3                                                                              H   H            8                                               762   OCH.sub.3                                                                              H   CHCH.sub.2   8                                               763   OCH.sub.3                                                                              H   CHOHCH.sub.2 OH(R)                                                                          8                                               764   OCH.sub.3                                                                              H   CHOHCH.sub.2 OH(S)                                                                          8                                               765   OCH.sub.3                                                                              H   CHO          8                                               766   OCH.sub.3                                                                              H   CH.sub.2 OH  8                                               767   OCH.sub.3                                                                              H   CO.sub.2 H   8                                               768   OCH.sub.3                                                                              H   CO.sub.2 CH.sub.3                                                                           8                                               769   OCH.sub.3                                                                              H   CHNOH        8                                               770   OCH.sub.3                                                                              H   CHOHCHCH.sub.2(R)                                                                           8                                               771   OCH.sub.3                                                                              H   CHOHCHCH.sub.2(S)                                                                           8                                               772   OC.sub.2 H.sub.5                                                                       CH.sub.3                                                                           CH.sub.3     8                                               773   OC.sub.2 H.sub.5                                                                       CH.sub.3                                                                           CHO          8                                               774   OC.sub.2 H.sub.5                                                                       CH.sub.3                                                                           CH.sub.2 OH  8                                               775   OC.sub.3 H.sub.7                                                                       CH.sub.3                                                                           CH.sub.3     8                                               776   OC.sub.3 H.sub.7                                                                       CH.sub.3                                                                           CHO          8                                               777   OC.sub.3 H.sub.7                                                                       CH.sub.3                                                                           CH.sub.2 OH  8                                               778   OC.sub.4 H.sub.9                                                                       CH.sub.3                                                                           CH.sub.3     8                                               779   OC.sub.4 H.sub.9                                                                       CH.sub.3                                                                           CHO          8                                               780   OC.sub.4 H.sub.9                                                                       CH.sub.3                                                                           CH.sub.2 OH  8                                               781   OPh     CH.sub.3                                                                           CH.sub.3     8                                               782   OPh     CH.sub.3                                                                           CHO          8                                               783   OPh     CH.sub.3                                                                           CH.sub.3 OH  8                                               784   OCH.sub.2 Ph                                                                           CH.sub.3                                                                           CH.sub.3     8                                               785   OCH.sub.2 Ph                                                                           CH.sub.3                                                                           CHO          8                                               786   OCH.sub.2 Ph                                                                           CH.sub.3                                                                           CH.sub.2 OH  8                                               787   OCOCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3     8                                               788   OCOCH.sub.3                                                                            CH.sub.3                                                                           H            8                                               789   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHCH.sub.2   8                                               790   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                          8                                               791   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                          8                                               792   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHO          8                                               793   OCOCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH  8                                               794   OCOCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H   8                                               795   OCOCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                           8                                               796   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHNOH        8                                               797   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHOHCHCH.sub.2(R)                                                                           8                                               798   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                           8                                               799   OCOCH.sub.3                                                                            H   CH.sub.3     8                                               800   OCOCH.sub.3                                                                            H   H            8                                               801   OCOCH.sub.3                                                                            H   CHCH.sub.2   8                                               802   OCOCH.sub.3                                                                            H   CHOHCH.sub.2 OH(R)                                                                          8                                               803   OCOCH.sub. 3                                                                           H   CHOHCH.sub.2 OH(S)                                                                          8                                               804   OCOCH.sub.3                                                                            H   CHO          8                                               805   OCOCH.sub.3                                                                            H   CH.sub.2 OH  8                                               806   OCOCH.sub.3                                                                            H   CO.sub.2 H   8                                               807   OCOCH.sub.3                                                                            H   CO.sub.2 CH.sub.3                                                                           8                                               808   OCOCH.sub.3                                                                            H   CHNOH        8                                               809   OCOCH.sub.3                                                                            H   CHOHCHCH.sub.2(R)                                                                           8                                               810   OCOCH.sub.3                                                                            H   CHOHCHCH.sub.2(S)                                                                           8                                               811   OCOCO.sub.2 H.sub.5                                                                    CH.sub.3                                                                           CH.sub.3     8                                               812   OCOC.sub.2 H.sub.5                                                                     CH.sub.3                                                                           CHO          8                                               813   OCOC.sub.2 H.sub.5                                                                     CH.sub.3                                                                           CH.sub.2 OH  8                                               814   OCOC.sub.3 H.sub.7                                                                     CH.sub.3                                                                           CH.sub.3     8                                               815   OCOC.sub.3 H.sub.7                                                                     CH.sub.3                                                                           CHO          8                                               816   OCOC.sub.3 H.sub.7                                                                     CH.sub.3                                                                           CH.sub.2 OH  8                                               817   OCOC.sub.4 H.sub.7                                                                     CH.sub.3                                                                           CH.sub.3     8                                               818   OCOC.sub.4 H.sub.9                                                                     CH.sub.3                                                                           CHO          8                                               819   OCOC.sub.4 H.sub.9                                                                     CH.sub.3                                                                           CH.sub.2 OH  8                                               820   OCOC.sub.15 H.sub.31                                                                   CH.sub.3                                                                           CH.sub.3     8                                               821   OCOC.sub.15 H.sub.31                                                                   CH.sub.3                                                                           CHO          8                                               822   OCOC.sub.15 H.sub.31                                                                   CH.sub.3                                                                           CH.sub.2 OH  8                                               823   OCOC.sub.15 H.sub.29                                                                   CH.sub.3                                                                           CH.sub.3     8                                               824   OCOC.sub.17 H.sub.35                                                                   CH.sub.3                                                                           CH.sub.3     8                                               825   OCOC.sub.17 H.sub.33                                                                   CH.sub.3                                                                           CH.sub.3     8                                               826   OCOC.sub.17 H.sub.31                                                                   CH.sub.3                                                                           CH.sub.3     8                                               827   OCOC.sub.17 H.sub.29                                                                   CH.sub.3                                                                           CH.sub.3     8                                               828   OCOC.sub.19 H.sub.31                                                                   CH.sub.3                                                                           CH.sub.3     8                                               829   OCOPh   CH.sub.3                                                                           CH.sub.3     8                                               830   OCOCPh  CH.sub.3                                                                           CH.sub.3     8                                               831   OCOCPh  CH.sub.3                                                                           CH.sub.3     8                                               832   OH      CH.sub.3                                                                           CH.sub.3     7                                               833   OH      CH.sub.3                                                                           CHO          7                                               834   OH      CH.sub.3                                                                           CH.sub.2 OH  7                                               835   OH      CH.sub.3                                                                           CO.sub.2 H   7                                               836   OH      H   CH.sub.3     7                                               837   OH      H   CHO          7                                               838   OH      H   CH.sub.2 OH  7                                               839   O       CH.sub.3                                                                           CH.sub.3     7                                               840   O       CH.sub.3                                                                           CHO          7                                               841   O       CH.sub.3                                                                           CH.sub.2 OH  7                                               842   O       H   CH.sub.3     7                                               843   O       H   CHO          7                                               844   O       H   CH.sub.2 OH  7                                               845   OCH.sub.3                                                                              CH.sub.3                                                                           CH.sub.3     7                                               846   OCH.sub.3                                                                              CH.sub.3                                                                           CHO          7                                               847   OCH.sub.3                                                                              CH.sub.3                                                                           CH.sub.2 OH  7                                               848   OCH.sub.3                                                                              H   CH.sub.3     7                                               849   OCH.sub.3                                                                              H   CHO          7                                               850   OCH.sub.3                                                                              H   CH.sub.2 OH  7                                               851   OCOCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3     7                                               852   OCOCH.sub.3                                                                            CH.sub.3                                                                           CHO          7                                               853   OCOCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH  7                                               854   OCOCH.sub.3                                                                            H   CH.sub.3     7                                               855   OCOCH.sub.3                                                                            H   CHO          7                                               856   OCOCH.sub.3                                                                            H   CH.sub.2 OH  7                                               __________________________________________________________________________      *Further analytical data are available in the examples section.          

A 4,4-bis-normethyl 15-oxasterol (R₂ of the general structure 1 is H), 14α-methyl-15-oxa-5α-cholest-8-en- 3b-ol (47), has also been synthesized from 5 -cholesta- 8,14-diene-3b-ol by following the sequence of the reaction steps depicted in the synthesis of 15-oxa-dihydrolansterol (11a). Conversion of the normethyl 8,14-diene 38a to the corresponding p-methoxybenzyl ether 38b followed by an osmium tetroxide hydroxylation, an acetalization, a Grignard reaction with methyl magnesium bromide and hydrolysis in 80% aqueous acetic acid provided the six-membered cyclic hemiacetal 43a in 50% overall yield (See, Scheme V).

The compound 43a was subsequently transformed into the desired 14α-methyl-15-oxa-5α-cholest-8-en-3b-ol (47) by glycal formation, osmium tetroxide hydroxylation, oxidative cleavage by sodium metaperiodate, and reduction with triethylsilane and boron trifluoride etherate in 34.5% overall yield from the cyclic hemiacetal 43a. Compound 47 is another example within the scope of the present invention and its synthesis is an example, which demonstrates that preparative methods for compounds with dimethyl at C-4 in the scope (Formula I, with R₂ ═CH₃) are applicable to di-bis-normethyl compounds in the scope (Formula I, with R₂ ═H). ##STR21##

15-Thia-lanosterols

For the synthesis of 15-thia-lanosterols, a novel class of compounds, a convenient and novel process has been developed.

Traditionally cyclic sulfides are prepared by displacing a halide, a sulfonate or an equivalent leaving group by an internal thiol.

Taking advantage of the ability to form a stable carbonium ion at the 14-position, a mixture of the cyclic hemiacetal 10b, and cyclic hemiacetal 10c, the intermediates for 15-oxa-dihydrolanosterol, was treated with gaseous hydrogen sulfide (Union Carbide Corp., Linde Division, Danbury, Conn. 06817) and boron trifluoride etherate in methylene chloride followed by triethylsilane to obtain the desired 15-thia-dihydrolanosterol (50) in 60% yield (43% overall yield from the six-membered cyclic hemiacetal 7b) (See, Scheme VI).

The one pot cyclic sulfide formation reaction presumably occurs via cyclic thioacetal 48 and the intermediate 48 is reduced by triethylsilane in the presence of boron trifluoride etherate. The p-methoxybenzyl protecting group at the 3-position was conveniently cleaved during the hydrogen sulfide and boron trifluoride treatment to carry out three operations in a single reaction vessel. This novel cyclic sulfide preparation method may also be operable when a stable carbonium ion formation is possible at the latent alcoholic center by other functional groups such as alkynyl, aryl and other alkenyl. 4,4-Dimethyl-15-thia-5a-cholest-8-en-3b-ol (49) and 4,4-dimethyl-15-thia-14a-vinyl-5a-cholest-8-en-3b-ol (51) have also been synthesized from the compounds 16b and 22b in 26% and 27% overall yields from the compounds 13b and 19b respectively.

Compounds 49, 50, and 52 constitute three examples of 15-thia-lanosterols within the scope of the present invention. ##STR22##

Sulfides are easily converted to sulfoxides with various oxidizing agents including sodium metaperiodate. Exposing the cyclic sulfide 50 to sodium metaperiodate in 5 parts of ethanol and 1 part of water produced the corresponding sulfoxide 53 in 67% yield. In the same manner C-14 hydride analog 52 and vinyl analog 54 may also be synthesized from the compounds 49 and 51 respectively. Compounds 52, 53, and 54 are three additional examples within the scope of the present invention.

Using more powerful oxidizing agents such as hydrogen peroxide or potassium permanganate (see S. R. Sandler, and W. Karo, Organic Functional Group Preparations, Vol. I pp. 610-618, Academic Press, 1983) sulfides or sulfoxides may be converted to the corresponding sulfones represented by the general structure 55, which are within the scope of the present invention.

For syntheses of other examples of compounds within the scope of this invention, further functionalization at the 14-position may also be achieved by converting the vinyl group of the compound 51 to an aldehyde and carrying out other necessary chemistry as discussed in the 15-oxa-lanosterols section, vide supra.

Tables 3, 4, and 5 set forth various thiasterols of the present invention.

                                      TABLE 3                                      __________________________________________________________________________      ##STR23##                                                                     Ex. No.                                                                             R.sub.1                                                                               R.sub.2                                                                             R.sub.3          D No.                                                                               M.P.                                    __________________________________________________________________________      857 OH     CH.sub.3                                                                            CH.sub.3         8 49 amorphous*                               858 OH     CH.sub.3                                                                            H                8 50 amorphous*                               859 OH     CH.sub.3                                                                            CHCH.sub.2       8 51 amorphous*                               860 OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8                                             861 OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              8                                             862 OH     CH.sub.3                                                                            CHO              8                                             863 OH     CH.sub.3                                                                            CH.sub.2 OH      8                                             864 OH     CH.sub.3                                                                            CO.sub.2 H       8                                             865 OH     CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                             866 OH     CH.sub.3                                                                            CHNOH            8                                             867 OH     CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                             868 OH     CH.sub.3                                                                            CHOHCH CH.sub.2 (S)                                                                             8                                             869 OH     H    CH.sub.3         8                                             870 OH     H    H                8                                             871 OH     H    CHCH.sub.2       8                                             872 OH     H    CHOHCH.sub.2 OH(R)                                                                              8                                             873 OH     H    CHOHCH.sub.2 OH(S)                                                                              8                                             874 OH     H    CHO              8                                             875 OH     H    CH.sub.2 OH      8                                             876 OH     H    CO.sub.2 H       8                                             877 OH     H    CO.sub.2 CH.sub.3                                                                               8                                             878 OH     H    CHNOH            8                                             879 OH     H    CHOHCHCH.sub.2 (R)                                                                              8                                             880 OH     H    CHOHCHCH.sub.2 (S)                                                                              8                                             881 OH     CH.sub.3                                                                            C.sub.2 H.sub.5  8                                             882 OH     CH.sub.3                                                                            CH.sub.2 CHCH.sub.2                                                                             8                                             883 OH     CH.sub.3                                                                            CCH              8                                             884 OH     CH.sub.3                                                                            CH.sub.2 Ph      8                                             885 OH     CH.sub.3                                                                            CH.sub.2 OCH.sub.3                                                                              8                                             886 OH     CH.sub.3                                                                            CH.sub.2 OCOCH.sub.3                                                                            8                                             887 OH     CH.sub.3                                                                            CH.sub.2 SH      8                                             888 OH     CH.sub.3                                                                            CH.sub.2 SCH.sub.3                                                                              8                                             889 OH     CH.sub.3                                                                            CH.sub.2 SCOCH.sub.3                                                                            8                                             890 OH     CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                             891 OH     CH.sub.3                                                                            CH.sub.2 NHCH.sub.3                                                                             8                                             892 OH     CH.sub.3                                                                            CH.sub.2 NHCOCH.sub.3                                                                           8                                             893 OH     CH.sub.3                                                                            CH.sub.2 NHCSCH.sub.3                                                                           8                                             894 OH     CH.sub.3                                                                            CH.sub.2 NHC(NH)CH.sub.3                                                                        8                                             895 OH     CH.sub.3                                                                            COCH.sub.3       8                                             896 OH     CH.sub.3                                                                            COCHCH.sub.2     8                                             897 OH     CH.sub.3                                                                            CSCH.sub.3       8                                             898 OH     CH.sub.3                                                                            CSCHCH.sub.2     8                                             899 OH     CH.sub.3                                                                            C(NH)CH.sub.3    8                                             900 OH     CH.sub.3                                                                            CO.sub.2 C.sub.2 H.sub.5                                                                        8                                             901 OH     CH.sub.3                                                                            COSCH.sub.3      8                                             902 OH     CH.sub.3                                                                            CONH.sub.2       8                                             903 OH     CH.sub.3                                                                            CONHCH.sub.3     8                                             904 OH     CH.sub.3                                                                            CONHCOCH.sub.3   8                                             905 OH     CH.sub.3                                                                            CSNH.sub.2       8                                             906 OH     CH.sub.3                                                                            CSNHCH.sub.3     8                                             907 OH     CH.sub.3                                                                            CSNHCOCH.sub.3   8                                             908 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                             909 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OCH.sub.3                                                                     8                                             910 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 OCOCH.sub.3                                                                   8                                             911 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SH                                                                            8                                             912 OH     CH.sub. 3                                                                           CH.sub.2 CH.sub.2 SCH.sub.3                                                                     8                                             913 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 SCOCH.sub.3                                                                   8                                             914 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NH.sub.2                                                                      8                                             915 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHCH.sub.3                                                                    8                                             916 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHCOCH.sub.3                                                                  8                                             917 OH     CH.sub.3                                                                            CH.sub.2 CHO     8                                             918 OH     CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                             919 OH     CH.sub.3                                                                            CH.sub.2 COCHCH.sub.2                                                                           8                                             920 OH     CH.sub.3                                                                            CH.sub.2 CSCH.sub.3                                                                             8                                             921 OH     CH.sub.3                                                                            CH.sub.2 CSCHCH.sub.2                                                                           8                                             922 OH     CH.sub.3                                                                            CH.sub.2 (NH)CH.sub.3                                                                           8                                             923 OH     CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                             924 OH     CH.sub.3                                                                            CH.sub.2 COSCH.sub.3                                                                            8                                             925 OH     CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                             926 OH     CH.sub.3                                                                            CH.sub.2 CONHCH.sub.3                                                                           8                                             927 OH     CH.sub.3                                                                            CH.sub.2 CONHCOCH.sub.3                                                                         8                                             928 OH     CH.sub.3                                                                            CH.sub.2 CSNH.sub.2                                                                             8                                             929 OH     CH.sub.3                                                                            CH.sub.2 C(NH)CH.sub.3                                                                          8                                             930 OH     CH.sub.3                                                                            CH.sub.2 Cl      8                                              931                                                                               OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                             932 OH     CH.sub.3                                                                            CN               8                                             933 OH     CH.sub.3                                                                            CHNOCH.sub.3     8                                             934 OH     CH.sub.3                                                                            CHNOCOCH.sub.3   8                                             935 OH     CH.sub.3                                                                            CHNNH.sub.2      8                                             936 OH     CH.sub.3                                                                            CHNNHCH.sub.3    8                                             937 OH     CH.sub.3                                                                            CHNNHCOCH.sub.3  8                                             938 OH     CH.sub.3                                                                            CHNNHCSCH.sub.3  8                                             939 OH     CH.sub.3                                                                            CH.sub.2 NHOH    8                                             940 OH     CH.sub.3                                                                            CH.sub.2 NHOCH.sub.3                                                                            8                                             941 OH     CH.sub.3                                                                            CH.sub.2 NHOCOCH.sub.3                                                                          8                                             942 OH     CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                             943 OH     CH.sub.3                                                                            CH.sub.2 NHNHCH.sub.3                                                                           8                                             944 OH     CH.sub.3                                                                            CH.sub.2 NHNHCOCH.sub.3                                                                         8                                             945 OH     CH.sub.3                                                                            CH.sub.2 NHNHCSCH.sub.3                                                                         8                                             946 OH     CH.sub.3                                                                            CH.sub.2 CN      8                                             947 OH     CH.sub.3                                                                            CH.sub.2 CHNOH   8                                             948 OH     CH.sub.3                                                                            CH.sub.2 CHNOCH.sub.3                                                                           8                                             949 OH     CH.sub.3                                                                            CH.sub.2 CHNOCOCH.sub.3                                                                         8                                             950 OH     CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                             951 OH     CH.sub.3                                                                            CH.sub.2 CH NNHCH.sub.3                                                                         8                                             952 OH     CH.sub.3                                                                            CH.sub.2 CHNNHCOCH.sub.3                                                                        8                                             953 OH     CH.sub.3                                                                            CH.sub.2 CHNNHCSCH.sub.3                                                                        8                                             954 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                             955 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOCH.sub.3                                                                   8                                             956 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOCOCH.sub.3                                                                 8                                             957 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                             958 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNHCH.sub.3                                                                  8                                             959 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNHCOCH.sub.3                                                                8                                             960 OH     CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNHCSCH.sub.3                                                                8                                             961 OH     CH.sub.3                                                                            CONHOH           8                                             962 OH     CH.sub.3                                                                            CONHOCH.sub.3    8                                             963 OH     CH.sub.3                                                                            CONHOCOCH.sub.3  8                                             964 OH     CH.sub.3                                                                            CSNHOH           8                                             965 OH     CH.sub.3                                                                            CSNHOCH.sub.3    8                                             966 OH     CH.sub.3                                                                            CSNHOCOCH.sub.3  8                                             967 OH     CH.sub.3                                                                            CHCHCHO          8                                             968 OH     CH.sub.3                                                                            CHCHCOCH.sub.3   8                                             969 OH     CH.sub.3                                                                            CHCHCSCH.sub.3   8                                             970 OH     CH.sub.3                                                                            CHCHCHNH         8                                             971 OH     CH.sub.3                                                                            CHCHC(NH)CH.sub.3                                                                               8                                              972                                                                               OH     CH.sub.3                                                                            CCCHO            8                                             973 OH     CH.sub.3                                                                            CCCOCH.sub.3     8                                             974 OH     CH.sub.3                                                                            CCCSCH.sub.3     8                                             975 OH     CH.sub.3                                                                            CCCHNH           8                                             976 OH     CH.sub.3                                                                            CCC(NH)CH.sub.3  8                                             977 OH     CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                             978 OH     CH.sub.3                                                                            CCCH.sub.2 Cl    8                                             979 OH     CH.sub.3                                                                            CHCHCH.sub.2 OCOCH.sub.3                                                                        8                                             980 OH     CH.sub.3                                                                            CCCH.sub.2 OCOCH.sub.3                                                                          8                                             981 OH     CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                             982 OH     CH.sub.3                                                                            CHOHCHOHCH.sub.2 OH                                                                             8                                             983 OH     CH.sub.3                                                                             ##STR24##       8                                             984 OH     CH.sub.3                                                                             ##STR25##       8                                             985 OH     CH.sub.3                                                                             ##STR26##       8                                             986 OH     H    CH.sub.2 SH      8                                             987 OH     H    CH.sub.2 NH.sub.2                                                                               8                                             988 OH     H    COCH.sub.3       8                                             989 OH     H    CONH.sub.2       8                                             990 OH     H    CSNH.sub.2       8                                             991 OH     H    CH.sub. 2 CH.sub.2 OH                                                                           8                                             992 OH     H    CH.sub.2 CHO     8                                             993 OH     H    CH.sub.2 COCH.sub.3                                                                             8                                             994 OH     H    CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                             995 OH     H    CH.sub.2 CONH.sub.2                                                                             8                                             996 OH     H    CH.sub.2 Cl      8                                             997 OH     H    CH.sub.2 CH.sub.2 Cl                                                                            8                                             998 OH     H    CN               8                                             999 OH     H    CHNNH.sub.2      8                                            1000 OH     H    CH.sub.2 NHOH    8                                            1001 OH     H    CH.sub.2 NHNH.sub.2                                                                             8                                            1002 OH     H    CH.sub.2 CN      8                                            1003 OH     H    CH.sub.2 CHNOH   8                                            1004 OH     H    CH.sub.2 CHNNH.sub.2                                                                            8                                            1005 OH     H    CH.sub.2 CH.sub.2 NHOH                                                                          8                                            1006 OH     H    CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            1007 OH     H    CONHOH           8                                            1008 OH     H    CHCHCHO          8                                            1009 OH     H    CHCHCOCH.sub.3   8                                            1010 OH     H    CHCHCH.sub.2 Cl  8                                            1011 OH     H    CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            1012 OH     H                                                                                    ##STR27##       8                                            1013 O      CH.sub.3                                                                            CH.sub.3         8                                            1014 O      CH.sub.3                                                                            H                8                                            1015 O      CH.sub.3                                                                            CHCH.sub.2       8                                            1016 O      CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8                                            1017 O      CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              8                                            1018 O      CH.sub.3                                                                            CHO              8                                            1019 O      CH.sub.3                                                                            CH.sub.2 OH      8                                            1020 O      CH.sub.3                                                                            CO.sub.2 H       8                                            1021 O      CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                            1022 O      CH.sub.3                                                                            CHNOH            8                                            1023 O      CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                            1024 O      CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8                                            1025 O      CH.sub.3                                                                            CH.sub.2 SH      8                                            1026 O      CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                            1027 O      CH.sub.3                                                                            COCH.sub.3       8                                            1028 O      CH.sub.3                                                                            CONH.sub.2       8                                            1029 O      CH.sub.3                                                                            CSNH.sub.2       8                                            1030 O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            1031 O      CH.sub.3                                                                            CH.sub.2 CHO     8                                            1032 O      CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            1033 O      CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            1034 O      CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            1035 O      CH.sub.3                                                                            CH.sub.2 Cl      8                                            1036 O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            1037 O      CH.sub.3                                                                            CN               8                                            1038 O      CH.sub.3                                                                            CHNNCH.sub.2     8                                            1039 O      CH.sub.3                                                                            CH.sub.2 NHOH    8                                            1040 O      CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            1041 O      CH.sub.3                                                                            CH.sub.2 CN      8                                            1042 O      CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            1043 O      CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            1044 O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            1045 O      CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            1046 O      CH.sub.3                                                                            CONHOH           8                                            1047 O      CH.sub.3                                                                            CHCHCHO          8                                            1048 O      CH.sub.3                                                                            CHCHCOCH.sub.3   8                                            1049 O      CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            1050 O      CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            1051 O      CH.sub.3                                                                             ##STR28##       8                                            1052 O      H    CH.sub.3         8                                            1053 O      H    H                8                                            1054 O      H    CHCH.sub.2       8                                            1055 O      H    CHOHCH.sub.2 OH(R)                                                                              8                                            1056 O      H    CHOHCH.sub.2 OH(S)                                                                              8                                            1057 O      H    CHO              8                                            1058 O      H    CH.sub.2 OH      8                                            1059 O      H    CO.sub.2 H       8                                            1060 O      H    CO.sub.2 CH.sub.3                                                                               8                                            1061 O      H    CHNOH            8                                            1062 O      H    CHOHCHCH.sub.2 (R)                                                                              8                                            1063 O      H    CHOHCHCH.sub.2 (S)                                                                              8                                            1064 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.3         8                                            1065 OCH.sub.3                                                                             CH.sub.3                                                                            H                8                                            1066 OCH.sub.3                                                                             CH.sub.3                                                                            CHCH.sub.2       8                                            1067 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8                                            1068 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              8                                            1069 OCH.sub.3                                                                             CH.sub.3                                                                            CHO              8                                            1070 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 OH      8                                            1071 OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 H       8                                            1072 OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                            1073 OCH.sub.3                                                                             CH.sub.3                                                                            CHNOH            8                                            1074 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                            1075 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8                                            1076 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 SH      8                                            1077 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                            1078 OCH.sub.3                                                                             CH.sub.3                                                                            COCH.sub.3       8                                            1079 OCH.sub.3                                                                             CH.sub.3                                                                            CONH.sub.2       8                                            1080 OCH.sub.3                                                                             CH.sub.3                                                                            CSNH.sub.2       8                                            1081 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            1082 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHO     8                                            1083 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            1084 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            1085 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            1086 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 Cl      8                                            1087 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            1088 OCH.sub.3                                                                             CH.sub.3                                                                            CN               8                                            1089 OCH.sub.3                                                                             CH.sub.3                                                                            CHNNH.sub.2      8                                            1090 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 NHOH    8                                            1091 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            1092 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CN      8                                            1093 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            1094 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            1095 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            1096 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            1097 OCH.sub.3                                                                             CH.sub.3                                                                            CONHOH           8                                            1098 OCH.sub.3                                                                             CH.sub.3                                                                            CHCHCHO          8                                            1099 OCH.sub.3                                                                             CH.sub.3                                                                            CHCHCOCH.sub.3   8                                            1100 OCH.sub.3                                                                             CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            1101 OCH.sub. 3                                                                            CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            1102 OCH.sub.2                                                                             CH.sub.3                                                                             ##STR29##       8                                            1103 OCH.sub.3                                                                             H    CH.sub.3         8                                            1104 OCH.sub.3                                                                             H    H                8                                            1105 OCH.sub.3                                                                             H    CHCH.sub.2       8                                            1106 OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(R)                                                                              8                                            1107 OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(S)                                                                              8                                            1108 OCH.sub.3                                                                             H    CHO              8                                            1109 OCH.sub.3                                                                             H    CH.sub.2 OH      8                                            1110 OCH.sub.3                                                                             H    CO.sub.2 H       8                                            1111 OCH.sub.3                                                                             H    CO.sub.2 CH.sub.3                                                                               8                                            1112 OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (R)                                                                              8                                            1114 OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (S)                                                                              8                                            1115 OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                            CH.sub.3         8                                            1116 OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                            CHO              8                                            1117 OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                            CH.sub.2 OH      8                                            1118 OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                            CH.sub.3         8                                            1119 OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                            CHO              8                                            1120 OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                            CH.sub.2 OH      8                                            1121 Oi-C.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CH.sub.3         8                                            1122 OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                            CH.sub.3         8                                            1123 OC.sub.4 H.sub. 9                                                                     OC.sub.3                                                                            CHO              8                                            1124 OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                            CH.sub.2 OH      8                                            1125 Oi-C.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.3         8                                            1126 Ot-C.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.3         8                                            1127 OPh    CH.sub.3                                                                            CH.sub.3         8                                            1128 OPh    CH.sub.3                                                                            CHO              8                                            1129 OPh    CH.sub.3                                                                            CH.sub.2 OH      8                                            1130 OCH.sub.2 Ph                                                                          CH.sub.3                                                                            CH.sub.3         8                                            1131 OCH.sub.2 Ph                                                                          CH.sub.3                                                                            CHO              8                                            1132 OCH.sub.2 Ph                                                                          CH.sub.3                                                                            CH.sub.2 OH      8                                            1133 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.3         8                                            1134 OCOCH.sub.3                                                                           CH.sub.3                                                                            H                8                                            1135 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCH.sub.2       8                                            1136 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              8                                            1137 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              8                                            1138 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHO              8                                            1139 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 OH      8                                            1140 OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 H       8                                            1141 OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               8                                            1142 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHNOH            8                                            1143 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              8                                            1144 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              8                                            1145 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 SH      8                                            1146 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 NH.sub.2                                                                               8                                            1147 OCOCH.sub.3                                                                           CH.sub.3                                                                            COCH.sub.3       8                                            1148 OCOCH.sub.3                                                                           CH.sub.3                                                                            CONH.sub.2       8                                            1149 OCOCH.sub.3                                                                           CH.sub.3                                                                            CSNH.sub.2       8                                            1150 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 OH                                                                            8                                            1151 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHO     8                                            1152 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 COCH.sub.3                                                                             8                                            1153 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CO.sub.2 CH.sub.3                                                                      8                                            1154 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CONH.sub.2                                                                             8                                            1155 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 Cl      8                                            1156 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 Cl                                                                            8                                            1157 OCOCH.sub.3                                                                           CH.sub.3                                                                            CN               8                                            1158 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHNNH.sub.2      8                                            1159 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 NHOH    8                                            1160 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 NHNH.sub.2                                                                             8                                            1161 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CN      8                                            1162 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHNOH   8                                            1163 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHNNH.sub.2                                                                            8                                            1164 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHOH                                                                          8                                            1165 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CH.sub.2 NHNH.sub.2                                                                    8                                            1166 OCOCH.sub.3                                                                           CH.sub. 3                                                                           CONHOH           8                                            1167 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCHCHO          8                                            1168 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCHCOCH.sub.3   8                                            1169 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCHCH.sub.2 Cl  8                                            1170 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 CHOHCH.sub.2 OH                                                                        8                                            1171 OCOCH.sub.3                                                                           CH.sub.3                                                                             ##STR30##       8                                            1172 OCOCH.sub.3                                                                           H    CH.sub.3         8                                            1173 OCOCH.sub.3                                                                           H    H                8                                            1174 OCOCH.sub.3                                                                           H    CHCH.sub.2       8                                            1175 OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(R)                                                                              8                                            1176 OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(S)                                                                              8                                            1177 OCOCH.sub.3                                                                           H    CHO              8                                            1178 OCOCH.sub.3                                                                           H    CH.sub.2 OH      8                                            1179 OCOCH.sub.3                                                                           H    CO.sub.2 H       8                                            1180 OCOCH.sub.3                                                                           H    CO.sub.2 CH.sub.3                                                                               8                                            1181 OCOCH.sub.3                                                                           H    CHNOH            8                                            1182 OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (R)                                                                              8                                            1183 OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (S)                                                                              8                                            1184 OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                            CH.sub.3         8                                            1185 OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                            CHO              8                                            1186 OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                            CH.sub.2 OH      8                                            1187 OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CH.sub.3         8                                            1188 OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CHO              8                                            1189 OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                            CH.sub.2 OH      8                                            1190 OCOi-C.sub.4 H.sub.7                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1191 OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.3         8                                            1192 OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CHO              8                                            1193 OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                            CH.sub.2 OH      8                                            1194 OCOi-C.sub.4 H.sub.9                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1195 OCOt-C.sub.4 H.sub.9                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1195 OCOC.sub.15 H.sub.31                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1197 OCOC.sub.15 H.sub.31                                                                  CH.sub.3                                                                            CHO              8                                            1198 OCOC.sub.15 H.sub.31                                                                  CH.sub.3                                                                            CH.sub.2 OH      8                                            1199 OCOC.sub.15 H.sub.29                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1200 OCOC.sub.17 H.sub.35                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1201 OCOC.sub.17 H.sub.33                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1202 OCOC.sub.17 H.sub.31                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1203 OCOC.sub.17 H.sub.29                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1204 OCOC.sub.19 H.sub.31                                                                  CH.sub.3                                                                            CH.sub.3         8                                            1205 OCOPh  CH.sub.3                                                                            CH.sub.3         8                                            1206 OCOPh  CH.sub.3                                                                            CHO              8                                            1207 OCOPh  CH.sub.3                                                                            CH.sub.2 OH      8                                            1208 OH     CH.sub.3                                                                            CH.sub.3         7                                            1209 OH     CH.sub.3                                                                            H                7                                            1210 OH     CH.sub.3                                                                            CHCH.sub.2       7                                            1211 OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            1212 OH     CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            1213 OH     CH.sub.3                                                                            CHO              7                                            1214 OH     CH.sub.3                                                                            CH.sub.2 OH      7                                            1215 OH     CH.sub.3                                                                            CO.sub.2 H       7                                            1216 OH     CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            1217 OH     CH.sub.3                                                                            CHNOH            7                                            1218 OH     CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            1219 OH     H    CH.sub.3         7                                            1220 OH     H    H                7                                            1221 OH     H    CHCH.sub.2       7                                            1222 OH     H    CHOHCH.sub.2 OH(R)                                                                              7                                            1223 OH     H    CHOHCH.sub.2 OH(S)                                                                              7                                            1224 OH     H    CHO              7                                            1225 OH     H    CH.sub.2 OH      7                                            1226 OH     H    CO.sub.2 H       7                                            1227 OH     H    CO.sub.2 CH.sub.3                                                                               7                                            1228 OH     H    CHNOH            7                                            1229 OH     H    CHOHCHCH.sub.2 (R)                                                                              7                                            1230 OH     H    CHOHCHCH.sub.2 (S)                                                                              7                                            1231 O      CH.sub.3                                                                            CH.sub.3         7                                            1232 O      CH.sub.3                                                                            H                7                                            1233 O      CH.sub.3                                                                            CHCH.sub.2       7                                            1234 O      CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            1235 O      CH.sub.3                                                                            CHOHCH.sub.2 OH (S)                                                                             7                                            1236 O      CH.sub.3                                                                            CHO              7                                            1237 O      CH.sub.3                                                                            CH.sub.2 OH      7                                            1238 O      CH.sub.3                                                                            CO.sub.2 H       7                                            1239 O      CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            1240 O      CH.sub.3                                                                            CHNOH            7                                            1241 O      CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            1242 O      CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            1243 O      H    CH.sub.3         7                                            1244 O      H    H                7                                            1245 O      H    CHCH.sub.2       7                                            1246 O      H    CHOHCH.sub.2 OH(R)                                                                              7                                            1247 O      H    CHOHCH.sub.2 OH(S)                                                                              7                                            1248 O      H    CHO              7                                            1249 O      H    CH.sub.2 OH      7                                            1250 O      H    CO.sub.2 H       7                                            1251 O      H    CO.sub.2 CH.sub.3                                                                               7                                            1252 O      H    CHNOH            7                                            1253 O      H    CHOHCHCH.sub.2 (R)                                                                              7                                            1254 O      H    CHOHCHCH.sub.2 (S)                                                                              7                                            1255 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.3         7                                            1256 OCH.sub.3                                                                             CH.sub.3                                                                            H                7                                            1257 OCH.sub.3                                                                             CH.sub.3                                                                            CHCH.sub.2       7                                            1258 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCH.sub.2 OH(R)                                                                              7                                            1259 OCH.sub. 3                                                                            CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            1260 OCH.sub.3                                                                             CH.sub.3                                                                            CHO              7                                            1261 OCH.sub.3                                                                             CH.sub.3                                                                            CH.sub.2 OH      7                                            1262 OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 H       7                                            1263 OCH.sub.3                                                                             CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            1264 OCH.sub.3                                                                             CH.sub.3                                                                            CHNOH            7                                            1265 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            1266 OCH.sub.3                                                                             CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            1267 OCH.sub.3                                                                             H    CH.sub.3         7                                            1268 OCH.sub.3                                                                             H    H                7                                            1269 OCH.sub.3                                                                             H    CHCH.sub.2       7                                            1270 OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(R)                                                                              7                                            1271 OCH.sub.3                                                                             H    CHOHCH.sub.2 OH(S)                                                                              7                                            1272 OCH.sub.3                                                                             H    CHO              7                                            1273 OCH.sub.3                                                                             H    CH.sub.2 OH      7                                            1274 OCH.sub.3                                                                             H    CO.sub.2 H       7                                            1275 OCH.sub.3                                                                             H    CO.sub.2 CH.sub.3                                                                               7                                            1276 OCH.sub.3                                                                             H    CHNOH            7                                            1277 OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (R)                                                                              7                                            1278 OCH.sub.3                                                                             H    CHOHCHCH.sub.2 (S)                                                                              7                                            1279 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.3         7                                            1280 OCOCH.sub.3                                                                           CH.sub.3                                                                            H                7                                            1281 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHCH.sub.2       7                                            1282 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub. 2 OH(R)                                                                             7                                            1283 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCH.sub.2 OH(S)                                                                              7                                            1284 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHO              7                                            1285 OCOCH.sub.3                                                                           CH.sub.3                                                                            CH.sub.2 OH      7                                            1286 OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 H       7                                            1287 OCOCH.sub.3                                                                           CH.sub.3                                                                            CO.sub.2 CH.sub.3                                                                               7                                            1288 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHNOH            7                                            1289 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (R)                                                                              7                                            1290 OCOCH.sub.3                                                                           CH.sub.3                                                                            CHOHCHCH.sub.2 (S)                                                                              7                                            1291 OCOCH.sub.3                                                                           H    CH.sub.3         7                                            1292 OCOCH.sub.3                                                                           H    H                7                                            1293 OCOCH.sub.3                                                                           H    CHCH.sub.2       7                                            1294 OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(R)                                                                              7                                            1295 OCOCH.sub.3                                                                           H    CHOHCH.sub.2 OH(S)                                                                              7                                            1296 OCOCH.sub.3                                                                           H    CHO              7                                            1297 OCOCH.sub.3                                                                           H    CH.sub.2 OH      7                                            1298 OCOCH.sub.3                                                                           H    CO.sub.2 H       7                                            1299 OCOCH.sub.3                                                                           H    CO.sub.2 CH.sub.3                                                                               7                                            1300 OCOCH.sub.3                                                                           H    CHNOH            7                                            1301 OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (R)                                                                              7                                            1302 OCOCH.sub.3                                                                           H    CHOHCHCH.sub.2 (S)                                                                              7                                            __________________________________________________________________________      *Further analytical data are available in the examples section.          

                                      TABLE 4                                      __________________________________________________________________________      ##STR31##                                                                     Ex. No.                                                                              R.sub.1                                                                               R.sub.2                                                                            R.sub.3      D  No. M.P.                                      __________________________________________________________________________     1303  OH     CH.sub.3                                                                           CH.sub.3     8  52  amorphous*                                1304  OH     CH.sub.3                                                                           H            8  53  amorphous*                                1305  OH     CH.sub.3                                                                           CHCH.sub.2   8  54  amorphous*                                1306  OH     CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                          8                                                1307  OH     CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                          8                                                1308  OH     CH.sub.3                                                                           CHO          8                                                1309  OH     CH.sub.3                                                                           CH.sub.2 OH  8                                                1310  OH     CH.sub.3                                                                           CO.sub.2 H   8                                                1311  OH     CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                           8                                                1312  OH     CH.sub.3                                                                           CHNOH        8                                                1313  OH     CH.sub.3                                                                           CHOHCHCH.sub.2(R)                                                                           8                                                1314  OH     CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                           8                                                1315  OH     H   CH.sub.3     8                                                1316  OH     H   H            8                                                1317  OH     H   CHCH.sub.2   8                                                1318  OH     H   CHOHCH.sub.2 OH(R)                                                                          8                                                1319  OH     H   CHOHCH.sub.2 OH(S)                                                                          8                                                1320  OH     H   CHO          8                                                1321  OH     H   CH.sub.2 OH  8                                                1322  OH     H   CO.sub.2 CH.sub.3                                                                           8                                                1323  OH     H   CHNOH        8                                                1324  OH     H   CHOHCHCH.sub.2(R)                                                                           8                                                1325  OH     H   CHOHCHCH.sub.2(S)                                                                           8                                                1326  OH     CH.sub.3                                                                           CH.sub.2 SH  8                                                1327  OH     CH.sub.3                                                                           CH.sub.2 NH.sub.2                                                                           8                                                1328  OH     CH.sub.3                                                                           COCH.sub.3   8                                                1329  OH     CH.sub.3                                                                           CONH.sub.2   8                                                1330  OH     CH.sub.3                                                                           CSNH.sub.2   8                                                1331  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 OH                                                                        8                                                1332  OH     CH.sub.3                                                                           CH.sub.2 CHO 8                                                1333  OH     CH.sub.3                                                                           CH.sub.2 COCH.sub.3                                                                         8                                                1334  OH     CH.sub.3                                                                           CH.sub.2 CO.sub.2 CH.sub.3                                                                  8                                                1335  OH     CH.sub.3                                                                           CH.sub.2 CONH.sub.2                                                                         8                                                1336  OH     CH.sub.3                                                                           CH.sub.2 Cl  8                                                1337  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 Cl                                                                        8                                                1338  OH     CH.sub.3                                                                           CN           8                                                1339  OH     CH.sub.3                                                                           CHNNH.sub.2  8                                                1340  OH     CH.sub.3                                                                           CH.sub.2 NHOH                                                                               8                                                1341  OH     CH.sub.3                                                                           CH.sub.2 NHNH.sub.2                                                                         8                                                1342  OH     CH.sub.3                                                                           CH.sub.2 CN  8                                                1343  OH     CH.sub.3                                                                           CH.sub.2 CHNOH                                                                              8                                                1344  OH     CH.sub.3                                                                           CH.sub.2 CHNNH.sub.2                                                                        8                                                1345  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHOH                                                                      8                                                1346  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHNH.sub.2                                                                8                                                1347  OH     CH.sub.3                                                                           CONHOH       8                                                1348  OH     CH.sub.3                                                                           CHCHCHO      8                                                1349  OH     CH.sub.3                                                                           CHCHCOCH.sub.3                                                                              8                                                1350  OH     CH.sub.3                                                                           CHCHCH.sub.2 Cl                                                                             8                                                1351  OH     CH.sub.3                                                                           CH.sub.2 CHOHCH.sub.2 OH                                                                    8                                                1352  OH     CH.sub.3                                                                            ##STR32##   8                                                1353  O      CH.sub.3                                                                           CH.sub.3     8                                                1354  O      CH.sub.3                                                                           CHO          8                                                1355  O      CH.sub.3                                                                           CH.sub.2 OH  8                                                1356  O      H   CH.sub.3     8                                                1357  O      H   CHO          8                                                1358  O      H   CH.sub.2 OH  8                                                1359  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3     8                                                1360  OCH.sub.3                                                                             CH.sub.3                                                                           CHO          8                                                1361  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.2 OH  8                                                1362  OCH.sub.3                                                                             H   CH.sub.3     8                                                1363  OCH.sub.3                                                                             H   CHO          8                                                1364  OCH.sub.3                                                                             H   CH.sub.2 OH  8                                                1365  OPh    CH.sub. 3                                                                          CH.sub.3     8                                                1366  OPh    CH.sub.3                                                                           CHO          8                                                1367  OPh    CH.sub.3                                                                           CH.sub.2 OH  8                                                1368  OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CH.sub.3     8                                                1369  OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CHO          8                                                1370  OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CH.sub.2 OH  8                                                1371  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.3     8                                                1372  OCOCH.sub.3                                                                           CH.sub.3                                                                           CHO          8                                                1373  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.2 OH  8                                                1374  OCOCH.sub.3                                                                           H   CH.sub.3     8                                                1375  OCOCH.sub.3                                                                           H   CHO          8                                                1376  OCOCH.sub.3                                                                           H   CH.sub.2 OH  8                                                1377  OCOPh  CH.sub.3                                                                           CH.sub.3     8                                                1378  OCOPh  CH.sub.3                                                                           CHO          8                                                1379  OCOPh  CH.sub.3                                                                           CH.sub.2 OH  8                                                1380  OH     CH.sub.3                                                                           CH.sub.3     7                                                1381  OH     CH.sub.3                                                                           CHO          7                                                1382  OH     CH.sub.3                                                                           CH.sub.2 OH  7                                                1383  OH     CH.sub.3                                                                           CO.sub.2 H   7                                                1384  OH     H   CH.sub.3     7                                                1385  OH     H   CHO          7                                                1386  OH     H   CH.sub.2 OH  7                                                1387  O      CH.sub.3                                                                           CH.sub.3     7                                                1388  O      CH.sub.3                                                                           CHO          7                                                1389  O      CH.sub.3                                                                           CH.sub.2 OH  7                                                1390  O      H   CH.sub.3     7                                                1391  O      H   CHO          7                                                1392  O      H   CH.sub.2 OH  7                                                1393  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3     7                                                1394  OCH.sub.3                                                                             CH.sub.3                                                                           CHO          7                                                1395  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.2 OH  7                                                1396  OCH.sub.3                                                                             H   CH.sub.3     7                                                1397  OCH.sub.2                                                                             H   CHO          7                                                1398  OCH.sub.3                                                                             H   CH.sub.2 OH  7                                                1399  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.3     7                                                1400  OCOCH.sub.3                                                                           CH.sub.3                                                                           CHO          7                                                1401  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.2 OH  7                                                1402  OCOCH.sub.3                                                                           H   CH.sub.3     7                                                1403  OCOCH.sub.3                                                                           H   CHO          7                                                1404  OCOCH.sub.3                                                                           H   CH.sub.2 OH  7                                                __________________________________________________________________________      *Further analytical data are availble in the examples section.           

                  TABLE 5                                                          ______________________________________                                          ##STR33##                                                                     Ex.                                                                            No.  R.sub.1   R.sub.2                                                                               R.sub.3      D   No.  M.P.                               ______________________________________                                         1405 OH        CH.sub.3                                                                              CH.sub.3     8                                           1406 OH        CH.sub.3                                                                              H            8                                           1407 OH        CH.sub.3                                                                              CHCH.sub.2   8                                           1408 OH        CH.sub.3                                                                              CHOHCH.sub.2 OH(R)                                                                          8                                           1409 OH        CH.sub.3                                                                              CHOHCH.sub.2 OH(S)                                                                          8                                           1410 OH        CH.sub.3                                                                              CHO          8                                           1411 OH        CH.sub.3                                                                              CH.sub.2 OH  8                                           1412 OH        CH.sub.3                                                                              CO.sub.2 H   8                                           1413 OH        CH.sub.3                                                                              CO.sub.2 CH.sub.3                                                                           8                                           1414 OH        CH.sub.3                                                                              CHNOH        8                                           1415 OH        CH.sub.3                                                                              CHOHCHCH.sub.2(R)                                                                           8                                           1416 OH        CH.sub.3                                                                              CHOHCHCH.sub.2(S)                                                                           8                                           1417 OH        H      CH.sub. 3    8                                           1418 OH        H      H            8                                           1419 OH        H      CHCH.sub.2   8                                           1420 OH        H      CHOHCH.sub.2 OH(R)                                                                          8                                           1421 OH        H      CHOHCH.sub.2 OH(S)                                                                          8                                           1422 OH        H      CHO          8                                           1423 OH        H      CH.sub.2 OH  8                                           1424 OH        H      CO.sub.2 H   8                                           1425 OH        H      CO.sub.2 CH.sub.3                                                                           8                                           1426 OH        H      CHNOH        8                                           1327 OH        H      CHOHCHCH.sub.2(R)                                                                           8                                           1428 OH        H      CHOHCHCH.sub.2(S)                                                                           8                                           1429 OH        CH.sub.3                                                                              CH.sub.2 SH  8                                           1430 OH        CH.sub.3                                                                              CH.sub.2 NH.sub.2                                                                           8                                           1431 OH        CH.sub.3                                                                              COCH.sub.3   8                                           1432 OH        CH.sub.3                                                                              CONH.sub.2   8                                           1433 OH        CH.sub.3                                                                              CSNH.sub.2   8                                           1434 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 OH                                                                        8                                           1435 OH        CH.sub.3                                                                              CH.sub.3 CHO 8                                           1436 OH        CH.sub.3                                                                              CH.sub.2 COCH.sub.3                                                                         8                                           1437 OH        CH.sub.3                                                                              CH.sub.2 CO.sub.2 CH.sub.3                                                                  8                                           1438 OH        CH.sub.3                                                                              CH.sub.2 CONH.sub.2                                                                         8                                           1439 OH        CH.sub.3                                                                              CH.sub.2 Cl  8                                           1440 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 Cl                                                                        8                                           1441 OH        CH.sub.3                                                                              CN           8                                           1442 OH        CH.sub.3                                                                              CHNNH.sub.2  8                                           1443 OH        CH.sub.3                                                                              CH.sub.2 NHOH                                                                               8                                           1444 OH        CH.sub.3                                                                              CH.sub.2 NHNH.sub.2                                                                         8                                           1445 OH        CH.sub.3                                                                              CH.sub.2 CN  8                                           1446 OH        CH.sub.3                                                                              CH.sub.2 CHNOH                                                                              8                                           1447 OH        CH.sub.3                                                                              CH.sub.2 CHNNH.sub.2                                                                        8                                           1448 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 NHOH                                                                      8                                           1449 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 NHNH.sub.2                                                                8                                           1450 OH        CH.sub.3                                                                              CONHOH       8                                           1451 OH        CH.sub.3                                                                              CHCHCHO      8                                           1452 OH        CH.sub.3                                                                              CHCHCOCH.sub.3                                                                              8                                           1453 OH        CH.sub.3                                                                              CH.sub.2 CHOHCH.sub.2 OH                                                                    8                                           1455 OH        CH.sub.3                                                                               ##STR34##   8                                           1456 O         CH.sub.3                                                                              CH.sub.3     8                                           1457 O         CH.sub.3                                                                              CHO          8                                           1458 O         CH.sub.3                                                                              CH.sub.2 OH  8                                           1459 O         H      CH.sub.3     8                                           1460 O         H      CHO          8                                           1461 O         H      CH.sub.2 OH  8                                           1462 OCH.sub.3 CH.sub.3                                                                              CH.sub.3     8                                           1463 OCH.sub.3 CH.sub.3                                                                              CHO          8                                           1464 OCH.sub.3 CH.sub.3                                                                              CH.sub.2 OH  8                                           1465 OCH.sub.3 H      CH.sub.3     8                                           1466 OCH.sub.3 H      CHO          8                                           1467 OCH.sub.3 H      CH.sub.2 OH  8                                           1468 OPh       CH.sub.3                                                                              CH.sub.3     8                                           1469 OPh       CH.sub.3                                                                              CHO          8                                           1470 OPh       CH.sub.3                                                                              CH.sub.2 OH  8                                           1471 OCH.sub.2 Ph                                                                             CH.sub.3                                                                              CH.sub.3     8                                           1472 OCH.sub.2 Ph                                                                             CH.sub.3                                                                              CHO          8                                           1473 OCH.sub.2 Ph                                                                             CH.sub.3                                                                              CH.sub.2 OH  8                                           1474 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.3     8                                           1475 OCOCH.sub.3                                                                              CH.sub.3                                                                              CHO          8                                           1476 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.2 OH  8                                           1477 OCOCH.sub.3                                                                              H      CH.sub.3     8                                           1478 OCOCH.sub.3                                                                              H      CHO          8                                           1479 OCOCH.sub.3                                                                              H      CH.sub.2 OH  8                                           1480 OCOPh     CH.sub.3                                                                              CH.sub.3     8                                           1481 OCOPh     CH.sub.3                                                                              CHO          8                                           1482 OCOPh     CH.sub.3                                                                              CH.sub.2 OH  8                                           1483 OH        CH.sub.3                                                                              CH.sub.3     7                                           1484 OH        CH.sub.3                                                                              CHO          7                                           1485 OH        CH.sub.3                                                                              CH.sub.2 OH  7                                           1486 OH        CH.sub.3                                                                              CH.sub.2 H   7                                           1487 OH        H      CH.sub.3     7                                           1488 OH        H      CHO          7                                           1489 OH        H      CH.sub.2 OH  7                                           1490 O         CH.sub.3                                                                              CH.sub.3     7                                           1491 O         CH.sub.3                                                                              CHO          7                                           1492 O         CH.sub.3                                                                              CH.sub.2 OH  7                                           1493 O         H      CH.sub.3     7                                           1494 O         H      CHO          7                                           1495 O         H      CH.sub.2 OH  7                                           1496 OCH.sub.3 CH.sub.3                                                                              CH.sub.3     7                                           1497 OCH.sub.3 CH.sub.3                                                                              CHO          7                                           1498 OCH.sub.3 CH.sub.3                                                                              CH.sub.2 OH  7                                           1499 OCH.sub.3 H      CH.sub.3     7                                           1500 OCH.sub.3 H      CHO          7                                           1501 OCH.sub.3 H      CH.sub.2 OH  7                                           1502 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.3     7                                           1503 OCOCH.sub.3                                                                              CH.sub.3                                                                              CHO          7                                           1504 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.2 OH  7                                           1505 OCOCH.sub.3                                                                              H      CH.sub.3     7                                           1506 OCOCH.sub.3                                                                              H      CHO          7                                           1507 OCOCH.sub.3                                                                              H      CH.sub.2 OH  7                                           ______________________________________                                    

The six-membered 15-thia-D-homo-lanosterol derivatives have also been synthesized from the six-membered 15-thia-lanosterols synthesis. Treatment of the mixture of the cyclic acetal 7d with hydrogen sulfide and boron trifluoride etherate in methylene chloride followed by triethylsilane afforded the desired 15-thia-D-homo-dihydrolanosterl (57) in 44% yield (See, Scheme VII).

4,4-Dimethyl-15-thia-D-homo-5a-cholest-8-en-3b-ol (56) has also been prepared in the same manner from the compound 13d in 59.2% yield.

4,4-dimethyl-15-thia-14a-vinyl-D-homo-5a-cholest-8-en-3b-ol (58) may also be synthesized in the same manner from the corresponding cyclic acetal 19a or cyclic acetal 19d. Compounds 56, 57 and 58 constitute three additional examples within the scope of the present invention.

The 15-thia-D-homo-lanosterol 56 was reacted with sodium metaperiodate in 5 parts of ethanol and 1 part of water to provide the corresponding sulfoxide 59, also within the scope of the present invention. The 14-methyl and 14-vinyl derivatives 60 and 61, which are likewise within the scope of the present invention, may also be synthesized in the same manner.

As mentioned earlier in the 5-membered case, sulfones with the general structure 62, which are within the scope of the present invention may be synthesized from the corresponding sulfides or sulfoxides. Further functionalization at C-14 to prepare the compounds within the scope may also be achieved by converting the vinyl group of 58 to an aldehyde and carrying out other necessary chemistry as discussed in 15-oxa-lanosterol section, supra. ##STR35##

Tables 6, 7, and 8 set forth various thiasterols of the present invention.

                                      TABLE 6                                      __________________________________________________________________________      ##STR36##                                                                     Ex. No.                                                                              R.sub.1                                                                               R.sub.2                                                                            R.sub.3      D   No. M.P.                                     __________________________________________________________________________     1508  OH     CH.sub.3                                                                           CH.sub.3     8   56  amorphous*                               1509  OH     CH.sub.3                                                                           H            8   57  amorphous*                               1510  OH     CH.sub.3                                                                           CHCH.sub.2   8   58  amorphous*                               1511  OH     CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                          8                                                1512  OH     CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                          8                                                1513  OH     CH.sub.3                                                                           CHO          8                                                1514  OH     CH.sub.3                                                                           CH.sub.2 OH  8                                                1515  OH     CH.sub.3                                                                           CO.sub.2 H   8                                                1516  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.3                                                                           8                                                1517  OH     CH.sub.3                                                                           CHNOH        8                                                1518  OH     CH.sub.3                                                                           CHOHCHCH.sub.2(R)                                                                           8                                                1519  OH     CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                           8                                                1520  OH     H   CH.sub.3     8                                                1521  OH     H   H            8                                                1522  OH     H   CHCH.sub.2   8                                                1523  OH     H   CHOHCH.sub.2 OH(R)                                                                          8                                                1524  OH     H   CHOHCH.sub.2 OH(S)                                                                          8                                                1525  OH     H   CHO          8                                                1526  OH     H   CH.sub.2 OH  8                                                1527  OH     H   CO.sub.2 H   8                                                1528  OH     H   CO.sub.2 CH.sub.3                                                                           8                                                1529  OH     H   CHNOH        8                                                1530  OH     H   CHOHCHCH.sub.2(R)                                                                           8                                                1531  OH     H   CHOHCHCH.sub.2(S)                                                                           8                                                1532  OH     CH.sub.3                                                                           CH.sub.2 SH  8                                                1533  OH     CH.sub.3                                                                           CH.sub.2 NH.sub.2                                                                           8                                                1534  OH     CH.sub.3                                                                           COCH.sub.3   8                                                1535  OH     CH.sub.3                                                                           CONH.sub.2   8                                                1536  OH     CH.sub.3                                                                           CSNH.sub.2   8                                                1537  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 OH                                                                        8                                                1538  OH     CH.sub.3                                                                           CH.sub.2 CHO 8                                                1539  OH     CH.sub.3                                                                           CH.sub.2 COCH.sub.3                                                                         8                                                1540  OH     CH.sub.3                                                                           CH.sub.2 CO.sub.2 CH.sub.3                                                                  8                                                1541  OH     CH.sub.3                                                                           CH.sub.2 CONH.sub.2                                                                         8                                                1542  OH     CH.sub.3                                                                           CH.sub.2 Cl  8                                                1543  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 Cl                                                                        8                                                1544  OH     CH.sub.3                                                                           CN           8                                                1545  OH     CH.sub.3                                                                           CHNNH.sub.2  8                                                1546  OH     CH.sub.3                                                                           CH.sub.2 NHOH                                                                               8                                                1547  OH     CH.sub.3                                                                           CH.sub.2 NHNH.sub.2                                                                         8                                                1548  OH     CH.sub.3                                                                           CH.sub.2 CN  8                                                1549  OH     CH.sub.3                                                                           CH.sub.2 CHNOH                                                                              8                                                1550  OH     CH.sub.3                                                                           CH.sub.2 CHNNH.sub.2                                                                        8                                                1551  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHOH                                                                      8                                                1552  OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHNH.sub.2                                                                8                                                1553  OH     CH.sub.3                                                                           CONHOH       8                                                1554  OH     CH.sub.3                                                                           CHCHCHO      8                                                1555  OH     CH.sub.3                                                                           CHCHOCH.sub.3                                                                               8                                                1556  OH     CH.sub.3                                                                           CHCHCH.sub.2 Cl                                                                             8                                                1557  OH     CH.sub.3                                                                           CH.sub.2 CHOHCH.sub.2 OH                                                                    8                                                1558  OH     CH.sub.3                                                                            ##STR37##   8                                                1560  O      CH.sub.3                                                                           CHO          8                                                1561  O      CH.sub.3                                                                           CH.sub.2 OH  8                                                1562  O      H   CH.sub.3     8                                                1563  O      H   CHO          8                                                1564  O      H   CH.sub.2 OH  8                                                1565  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3     8                                                1566  OCH.sub.3                                                                             CH.sub.3                                                                           CHO          8                                                1567  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.2 OH  8                                                1568  OCH.sub.3                                                                             H   CH.sub.3     8                                                1569  OCH.sub.3                                                                             H   CHO          8                                                1570  OCH.sub.3                                                                             H   CH.sub.2 OH  8                                                1571  OPh    CH.sub.3                                                                           CH.sub. 3    8                                                1572  OPh    CH.sub.3                                                                           CHO          8                                                1573  OPh    CH.sub.3                                                                           CH.sub.2 OH  8                                                1574  OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CH.sub.3     8                                                1575  OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CHO          8                                                1576  OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CH.sub.2 OH  8                                                1577  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.3     8                                                1578  OCOCH.sub.3                                                                           CH.sub.3                                                                           CHO          8                                                1579  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.2 OH  8                                                1580  OCOCH.sub.3                                                                           H   CH.sub.3     8                                                1581  OCOCH.sub.3                                                                           H   CHO          8                                                1582  OCOCH.sub.3                                                                           H   CH.sub.2 OH  8                                                1583  OCOPh  CH.sub.3                                                                           CH.sub.3     8                                                1584  OCOPh  CH.sub.3                                                                           CHO          8                                                1585  OCOPh  CH.sub.3                                                                           CH.sub.2 OH  8                                                1586  OH     CH.sub.3                                                                           CH.sub.3     7                                                1587  OH     CH.sub.3                                                                           CHO          7                                                1588  OH     CH.sub.3                                                                           CH.sub.2 OH  7                                                1589  OH     CH.sub.3                                                                           CO.sub.2 H   7                                                1590  OH     H   CH.sub.3     7                                                1591  OH     H   CHO          7                                                1592  OH     H   CH.sub.2 OH  7                                                1593  O      CH.sub.3                                                                           CH.sub.3     7 -1594                                                                            O   CH.sub.3 CHO 7                           1595  O      CH.sub.3                                                                           CH.sub.2 OH  7                                                1596  O      H   CH.sub.3     7                                                1597  O      H   CHO          7                                                1598  O      H   CH.sub.2 OH  7                                                1599  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3     7                                                1600  OCH.sub.3                                                                             CH.sub.3                                                                           CHO          7                                                1601  OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.2 OH  7                                                1602  OCH.sub.3                                                                             H   CH.sub.3     7                                                1603  OCH.sub.3                                                                             H   CHO          7                                                1604  OCH.sub.3                                                                             H   CH.sub.2 OH  7                                                1605  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.3     7                                                1606  OCOCH.sub.3                                                                           CH.sub.3                                                                           CHO          7                                                1607  OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.2 OH  7                                                1608  OCOCH.sub.3                                                                           H   CH.sub.3     7                                                1609  OCOCH.sub.3                                                                           H   CHO          7                                                1610  OCOCH.sub.3                                                                           H   CH.sub.2 OH  7                                                __________________________________________________________________________      *Further analytical data are available in the examples section.          

                                      TABLE 7                                      __________________________________________________________________________      ##STR38##                                                                     No. R.sub.1                                                                               R.sub.2                                                                            R.sub.3     D  No. M. P.                                        __________________________________________________________________________     1611                                                                               OH     CH.sub.3                                                                           CH.sub.3    8  59  amorphous*                                   1612                                                                               OH     CH.sub.3                                                                           H           8  60  amorphous*                                   1613                                                                               OH     CH.sub.3                                                                           CHCH.sub.2  8  61  amorphous*                                   1614                                                                               OH     CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                         8                                                   1615                                                                               OH     CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                         8                                                   1616                                                                               OH     CH.sub.3                                                                           CHO         8                                                   1617                                                                               OH     CH.sub.3                                                                           CH.sub.2 OH 8                                                   1618                                                                               OH     CH.sub.3                                                                           CO.sub.2 H  8                                                   1619                                                                               OH     CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                          8                                                   1620                                                                               OH     CH.sub.3                                                                           CHNOH       8                                                   1621                                                                               OH     CH.sub.3                                                                           CHOHCHCH.sub.2 (R)                                                                         8                                                   1622                                                                               OH     CH.sub.3                                                                           CHOHCHCH.sub.2 (S)                                                                         8                                                   1623                                                                               OH     H   CH.sub.3    8                                                   1624                                                                               OH     H   H           8                                                   1625                                                                               OH     H   CHCH.sub.2  8                                                   1626                                                                               OH     H   CHOHCH.sub.2 OH(R)                                                                         8                                                   1627                                                                               OH     H   CHOHCH.sub.2 OH(S)                                                                         8                                                   1628                                                                               OH     H   CHO         8                                                   1629                                                                               OH     H   CH.sub.2 OH 8                                                   1630                                                                               OH     H   CO.sub.2 H  8                                                   1631                                                                               OH     H   CO.sub.2 CH.sub.3                                                                          8                                                   1632                                                                               OH     H   CHNOH       8                                                   1633                                                                               OH     H   CHOHCHCH.sub.2 (R)                                                                         8                                                   1634                                                                               OH     H   CHOHCH CH.sub.2 (S)                                                                        8                                                   1635                                                                               OH     CH.sub.3                                                                           CH.sub.2 SH 8                                                   1636                                                                               OH     CH.sub.3                                                                           CH.sub.2 NH.sub.2                                                                          8                                                   1637                                                                               OH     CH.sub.3                                                                           COCH.sub.3  8                                                   1638                                                                               OH     CH.sub.3                                                                           CONH.sub.2  8                                                   1639                                                                               OH     CH.sub.3                                                                           CSNH.sub.2  8                                                   1640                                                                               OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 OH                                                                       8                                                   1641                                                                               OH     CH.sub.3                                                                           CH.sub.2 CHO                                                                               8                                                   1642                                                                               OH     CH.sub.3                                                                           CH.sub.2 COCH.sub.3                                                                        8                                                   1643                                                                               OH     CH.sub.3                                                                           CH.sub.2 CO.sub.2 CH.sub.3                                                                 8                                                   1644                                                                               OH     CH.sub.3                                                                           CH.sub.2 CONH.sub.2                                                                        8                                                   1645                                                                               OH     CH.sub.3                                                                           CH.sub.2 Cl 8                                                   1646                                                                               OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 Cl                                                                       8                                                   1647                                                                               OH     CH.sub.3                                                                           CN          8                                                   1648                                                                               OH     CH.sub.3                                                                           CHNNH.sub.2 8                                                   1649                                                                               OH     CH.sub.3                                                                           CH.sub.2 NHOH                                                                              8                                                   1650                                                                               OH     CH.sub.3                                                                           CH.sub.2 NHNH.sub.2                                                                        8                                                   1651                                                                               OH     CH.sub.3                                                                           CH.sub.2 CN 8                                                   1652                                                                               OH     CH.sub.3                                                                           CH.sub.2 CHNOH                                                                             8                                                   1653                                                                               OH     CH.sub.3                                                                           CH.sub.2 CHNNH.sub.2                                                                       8                                                   1654                                                                               OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHOH                                                                     8                                                   1655                                                                               OH     CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHNH.sub.2                                                               8                                                   1656                                                                               OH     CH.sub.3                                                                           CONHOH      8                                                   1657                                                                               OH     CH.sub.3                                                                           CHCHCHO     8                                                   1658                                                                               OH     CH.sub.3                                                                           CHCHCOCH.sub.3                                                                             8                                                   1659                                                                               OH     CH.sub.3                                                                           CHCHCH.sub.2 Cl                                                                            8                                                   1660                                                                               OH     CH.sub.3                                                                           CH.sub.2 CHOHCH.sub.2 OH                                                                   8                                                   1661                                                                               OH     CH.sub.3                                                                            ##STR39##  8                                                   1662                                                                               O      CH.sub.3                                                                           CH.sub.3    8                                                   1663                                                                               O      CH.sub.3                                                                           CHO         8                                                   1664                                                                               O      CH.sub.3                                                                           CH.sub.2 OH 8                                                   1665                                                                               O      H   CH.sub.3    8                                                   1666                                                                               O      H   CHO         8                                                   1667                                                                               O      H   CH.sub.2 OH 8                                                   1668                                                                               OCH.sub.3                                                                             CH.sub.3                                                                           CH.sup.3    8                                                   1669                                                                               OCH.sub.3                                                                             CH.sub.3                                                                           CHO         8                                                   1670                                                                               OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.2 OH 8                                                   1671                                                                               OCH.sub.3                                                                             H   CH.sub.3    8                                                   1672                                                                               OCH.sub.3                                                                             H   CHO         8                                                   1673                                                                               OCH.sub.3                                                                             H   CH.sub.2 OH 8                                                   1674                                                                               OPh    CH.sub.3                                                                           CH.sub.3    8                                                   1675                                                                               OPh    CH.sub.3                                                                           CHO         8                                                   1676                                                                               OPh    CH.sub.3                                                                           CH.sub.2 OH 8                                                   1677                                                                               OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CH.sub.3    8                                                   1678                                                                               OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CHO         8                                                   1679                                                                               OCH.sub.2 Ph                                                                          CH.sub.3                                                                           CH.sub.2 OH 8                                                   1680                                                                               OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.3    8                                                   1681                                                                               OCOCH.sub.3                                                                           CH.sub.3                                                                           CHO         8                                                   1682                                                                               OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.2 OH 8                                                   1683                                                                               OCOCH.sub.3                                                                           H   CH.sub.3    8                                                   1684                                                                               OCOCH.sub.3                                                                           H   CHO         8                                                   1685                                                                               OCOCH.sub.3                                                                           H   CH.sub.2 OH 8                                                   1686                                                                               OCOPh  CH.sub.3                                                                           CH.sub.3    8                                                   1687                                                                               OCOPh  CH.sub.3                                                                           CHO         8                                                   1688                                                                               OCOPh  CH.sub.3                                                                           CH.sub.2 OH 8                                                   1689                                                                               OH     CH.sub.3                                                                           CH.sub.3    7                                                   1690                                                                               OH     CH.sub.3                                                                           CHO         7                                                   1691                                                                               OH     CH.sub.3                                                                           CH.sub.2 OH 7                                                   1692                                                                               OH     CH.sub.3                                                                           CO.sub.2 H  7                                                   1693                                                                               OH     H   CH.sub.3    7                                                   1694                                                                               OH     H   CHO         7                                                   1695                                                                               OH     H   CH.sub.2 OH 7                                                   1696                                                                               O      CH.sub.3                                                                           CH.sub.3    7                                                   1697                                                                               O      CH.sub.3                                                                           CHO         7                                                   1698                                                                               O      CH.sub.3                                                                           CH.sub.2 OH 7                                                   1699                                                                               O      H   CH.sub.3    7                                                   1700                                                                               O      H   CHO         7                                                   1701                                                                               O      H   CH.sub.2 OH 7                                                   1702                                                                               OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3    7                                                   1703                                                                               OCH.sub.3                                                                             CH.sub.3                                                                           CHO         7                                                   1704                                                                               OCH.sub.3                                                                             CH.sub.3                                                                           CH.sub.2 OH 7                                                   1705                                                                               OCH.sub.3                                                                             H   CH.sub.3    7                                                   1706                                                                               OCH.sub.3                                                                             H   CHO         7                                                   1707                                                                               OCH.sub.3                                                                             H   CH.sub.2 OH 7                                                   1708                                                                               OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.3    7                                                   1709                                                                               OCOCH.sub.3                                                                           CH.sub.3                                                                           CHO         7                                                   1710                                                                               OCOCH.sub.3                                                                           CH.sub.3                                                                           CH.sub.2 OH 7                                                   1711                                                                               OCOCH.sub.3                                                                           H   CH.sub.3    7                                                   1712                                                                               OCOCH.sub.3                                                                           H   CHO         7                                                   1713                                                                               OCOCH.sub.3                                                                           H   CH.sub.2 OH 7                                                   __________________________________________________________________________      *Further analytical data are available in the examples section.          

                  TABLE 8                                                          ______________________________________                                          ##STR40##                                                                     No.  R.sub.1   R.sub.2                                                                               R.sub.3      D   No.  M.P.                               ______________________________________                                         1714 OH        CH.sub.3                                                                              CH.sub.3     8                                           1715 OH        CH.sub.3                                                                              H            8                                           1716 OH        CH.sub.3                                                                              CHCH.sub.2   8                                           1717 OH        CH.sub.3                                                                              CHOHCH.sub.2 OH(R)                                                                          8                                           1718 OH        CH.sub.3                                                                              CHOHCH.sub.2 OH(S)                                                                          8                                           1719 OH        CH.sub.3                                                                              CHO          8                                           1720 OH        CH.sub.3                                                                              CH.sub.2 OH  8                                           1721 OH        CH.sub.3                                                                              CO.sub.2 H   8                                           1722 OH        CH.sub.3                                                                              CO.sub.2 CH.sub.3                                                                           8                                           1723 OH        CH.sub.3                                                                              CHNOH        8                                           1724 OH        CH.sub.3                                                                              CHOHCHCH.sub.2 (R)                                                                          8                                           1725 OH        CH.sub.3                                                                              CHOHCHCH.sub.2 (S)                                                                          8                                           1726 OH        H      CH.sub.3     8                                           1727 OH        H      H            8                                           1728 OH        H      CHCH.sub.2   8                                           1729 OH        H      CHOHCH.sub.2 OH(R)                                                                          8                                           1730 OH        H      CHOHCH.sub.2 OH(S)                                                                          8                                           1731 OH        H      CHO          8                                           1732 OH        H      CH.sub.2 OH  8                                           1733 OH        H      CO.sub.2 H   8                                           1734 OH        H      CO.sub.2 CH.sub.3                                                                           8                                           1735 OH        H      CHNOH        8                                           1736 OH        H      CHOHCHCH.sub.2 (R)                                                                          8                                           1737 OH        H      CHOHCHCH.sub.2 (S)                                                                          8                                           1738 OH        CH.sub.3                                                                              CH.sub.2 SH  8                                           1739 OH        CH.sub.3                                                                              CH.sub.2 NH.sub.2                                                                           8                                           1740 OH        CH.sub.3                                                                              COCH.sub.3   8                                           1741 OH        CH.sub.3                                                                              CONH.sub.2   8                                           1742 OH        CH.sub.3                                                                              CSNH.sub.2   8                                           1743 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 OH                                                                        8                                           1744 OH        CH.sub.3                                                                              CH.sub.2 CHO 8                                           1745 OH        CH.sub.3                                                                              CH.sub.2 COCH.sub.3                                                                         8                                           1746 OH        CH.sub.3                                                                              CH.sub.2 CO.sub.2 CH.sub.3                                                                  8                                           1747 OH        CH.sub.3                                                                              CH.sub.2 CONH.sub.2                                                                         8                                           1748 OH        CH.sub.3                                                                              CH.sub.2 Cl  8                                           1749 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 Cl                                                                        8                                           1750 OH        CH.sub.3                                                                              CN           8                                           1751 OH        CH.sub.3                                                                              CHNNH.sub.2  8                                           1752 OH        CH.sub.3                                                                              CH.sub.2 NHOH                                                                               8                                           1753 OH        CH.sub.3                                                                              CH.sub.2 NHNH.sub.2                                                                         8                                           1754 OH        CH.sub.3                                                                              CH.sub.2 CN  8                                           1755 OH        CH.sub.3                                                                              CH.sub.2 CHNOH                                                                              8                                           1756 OH        CH.sub.3                                                                              CH.sub.2 CHNNH.sub.2                                                                        8                                           1757 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 NHOH                                                                      8                                           1758 OH        CH.sub.3                                                                              CH.sub.2 CH.sub.2 NHNH.sub.2                                                                8                                           1759 OH        CH.sub.3                                                                              CONHOH       8                                           1760 OH        CH.sub.3                                                                              CHCHCHO      8                                           1761 OH        CH.sub.3                                                                              CHCHCOCH.sub.3                                                                              8                                           1762 OH        CH.sub.3                                                                              CHCHCH.sub.2 Cl                                                                             8                                           1763 OH        CH.sub.3                                                                              CH.sub.2 CHOHCH.sub.2 OH                                                                    8                                           1764 OH        CH.sub.3                                                                               ##STR41##   8                                           1765 O         CH.sub.3                                                                              CH.sub.3     8                                           1766 O         CH.sub.3                                                                              CHO          8                                           1767 O         CH.sub.3                                                                              CH.sub.2 OH  8                                           1768 O         H      CH.sub.3     8                                           1769 O         H      CHO          8                                           1770 O         H      CH.sub.2 OH  8                                           1771 OCH.sub.3 CH.sub.3                                                                              CH.sub.3     8                                           1772 OCH.sub.3 CH.sub.3                                                                              CHO          8                                           1773 OCH.sub.3 CH.sub.3                                                                              CH.sub.2 OH  8                                           1774 OCH.sub.3 H      CH.sub.3     8                                           1775 OCH.sub.3 H      CHO          8                                           1776 OCH.sub.3 H      CH.sub.2 OH  8                                           1777 OPh       CH.sub.3                                                                              CH.sub.3     8                                           1778 OPh       CH.sub.3                                                                              CHO          8                                           1779 OPh       CH.sub.3                                                                              CH.sub.2 OH  8                                           1780 OCH.sub.2 Ph                                                                             CH.sub.3                                                                              CH.sub.3     8                                           1781 OCH.sub.2 Ph                                                                             CH.sub.3                                                                              CHO          8                                           1782 OCH.sub.2 Ph                                                                             CH.sub.3                                                                              CH.sub.2 OH  8                                           1783 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.3     8                                           1784 OCOCH.sub.3                                                                              CH.sub.3                                                                              CHO          8                                           1785 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.2 OH  8                                           1786 OCOCH.sub.3                                                                              H      CH.sub.3     8                                           1787 OCOCH.sub.3                                                                              H      CHO          8                                           1788 OCOCH.sub.3                                                                              H      CH.sub.2 OH  8                                           1789 OCOPh     CH.sub.3                                                                              CH.sub.3     8                                           1790 OCOPh     CH.sub.3                                                                              CHO          8                                           1791 OCOPh     CH.sub.3                                                                              CH.sub.2 OH  8                                           1792 OH        CH.sub.3                                                                              CH.sub.3     7                                           1793 OH        CH.sub.3                                                                              CHO          7                                           1794 OH        CH.sub.3                                                                              CH.sub.2 OH  7                                           1795 OH        CH.sub.3                                                                              CO.sub.2 H   7                                           1796 OH        H      CH.sub.3     6                                           1797 OH        H      CHO          7                                           1798 OH        H      CH.sub.2 OH  7                                           1799 O         CH.sub.3                                                                              CH.sub.3     7                                           1800 O         CH.sub.3                                                                              CHO          7                                           1801 O         CH.sub.3                                                                              CH.sub.2 OH  7                                           1802 O         H      CH.sub.3     7                                           1803 O         H      CHO          7                                           1804 O         H      CH.sub.2 OH  7                                           1805 OCH.sub.3 CH.sub.3                                                                              CH.sub.3     7                                           1806 OCH.sub.3 CH.sub.3                                                                              CHO          7                                           1807 OCH.sub.3 CH.sub.3                                                                              CH.sub.2 OH  7                                           1808 OCH.sub.3 H      CH.sub.3     7                                           1809 OCH.sub.3 H      CHO          7                                           1810 OCH.sub.3 H      CH.sub.2 OH  7                                           1811 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.3     7                                           1812 OCOCH.sub.3                                                                              CH.sub.3                                                                              CHO          7                                           1813 OCOCH.sub.3                                                                              CH.sub.3                                                                              CH.sub.2 OH  7                                           1814 OCOCH.sub.3                                                                              H      CH.sub.3     7                                           1815 OCOCH.sub.3                                                                              H      CHO          7                                           1816 OCOCH.sub.3                                                                              H      CH.sub.2 OH  7                                           ______________________________________                                    

15-Azasterols

Because the same chemistry could not be utilized for 15-azasterols as was used for 15-oxasterols and 15-thiasterols, a new synthetic route, which involves a Curtis rearrangement as the key step, has been developed for 15-aza-lanosterols.

Thus the enone-aldehyde 4b was oxidized with sodium chlorite (Aldrich) in the presence of sulfamic acid (Fisher) in 4 parts of tertiary butanol and 1 part of water to afford the corresponding carboxylic acid 63 in near quantitative yield (See, Scheme VIII).

The acid 63 was converted to an acyl azide under phase transfer catalysis conditions. It was first treated with isobutyl chloroformate (Aldrich) and N-methyl-morpholine (Aldrich) in dry methylene chloride and then the intermediate mixed anhydride was reacted with sodium azide (Fisher) and tetrabutylammonium bromide (Aldrich) in methylene chloride and water to give acyl azide 64 in quantitative yield.

A Curtis rearrangement of the acyl azide 64 in a refluxing mixture of ethyl acetate and methanol (1:5) provided the corresponding carbamate 65 which was pure enough to be carried onto the next reaction. The carbamate 65 was hydrolyzed with potassium silanoate (Petrach Systems, Bristol, Pa. 19007) in refluxing tetrahydrofuran to give a five-membered cyclic imine 66b in 73% overall yield for six steps starting from the 8,14-diene 2b.

Finally the p-methoxybenzyl protecting group at C-3 was cleaved by treating with allyltrimethylsilane and boron trifluoride etherate in methylene chloride to afford the unprotected 15-azasterol 66a, a compound within the scope of this invention, in 93% yield. ##STR42##

A bis-4,4-normethyl 15-azasterol (R₂ of the general structure 1 is H) has also been synthesized from the enone-aldehyde 40 by following the sequence of the reaction steps described in the synthesis of 15-azasterol 66a. Oxidation of the aldehyde 40 followed by acyl azide formation, Curtis rearrangement and hydrolysis of carbamate provided the protected 15-azasterol 70b in 61% overall yield for six steps starting from the 8,14-diene 38b. Deprotection of 70b at C-3 gave compound 70a in 96% yield based on the recovered starting material 70b. Compound 70a is another example of a 15-aza-lanosterol within the scope of the present invention.

Further functionalizations at the 14 and 15 positions of 15-azasterol may be achieved by a reduction or an addition to the imine followed by appropriate transformations to synthesize additional compounds within the scope, which have general structure 71 in the scheme.

Tables 9-13 set forth various azasterols of the present invention.

                  TABLE 9                                                          ______________________________________                                          ##STR43##                                                                     No.    R.sub.1    R.sub.2  D   n*    No.  M.P.                                 ______________________________________                                         1817   OH         CH.sub.3 8   1     66a                                       1818   OH         H        8   1     70a                                       1819   OH         C.sub.2 H.sub.5                                                                         8   1                                               1820   O          CH.sub.3 8   1                                               1821   O          H        8   1                                               1822   O          C.sub.2 H.sub.5                                                                         8   1                                               1823   OCH.sub.3  CH.sub.3 8   1                                               1824   OCH.sub.3  H        8   1                                               1825   OCH.sub.3  C.sub.2 H.sub.5                                                                         8   1                                               1826   OC.sub.2 H.sub.5                                                                          CH.sub.3 8   1                                               1827   OC.sub.2 H.sub.5                                                                          H        8   1                                               1828   OC.sub.2 H.sub.5                                                                          C.sub.2 H.sub.5                                                                         8   1                                               1829   OC.sub.3 H.sub.7                                                                          CH.sub.3 8   1                                               1830   OC.sub.3 H.sub.7                                                                          H        8   1                                               1831   OC.sub.3 H.sub.7                                                                          C.sub.2 H.sub.5                                                                         8   1                                               1832   Oi-C.sub.3 H.sub.7                                                                        CH.sub.3 8   1                                               1833   Oi-C.sub.3 H.sub.7                                                                        H        8   1                                               1834   Oi-C.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         8   1                                               1835   OC.sub.4 H.sub.9                                                                          CH.sub.3 8   1                                               1836   OC.sub.4 H.sub.9                                                                          H        8   1                                               1837   OC.sub.4 H.sub.9                                                                          C.sub.2 H.sub.5                                                                         8   1                                               1838   Oi-C.sub.4 H.sub.9                                                                        CH.sub.3 8   1                                               1939   Oi-C.sub.4 H.sub.9                                                                        H        8   1                                               1840   Oi-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         8   1                                               1841   Ot-C.sub.4 H.sub.9                                                                        CH.sub.3 8   1                                               1842   Ot-C.sub.4 H.sub.9                                                                        H        8   1                                               1843   Ot-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         8   1                                               1844   OPh        CH.sub.3 8   1                                               1845   OPh        H        8   1                                               1846   OPh        C.sub.2 H.sub.5                                                                         8   1                                               1847   OCH.sub.2 Ph                                                                              CH.sub.3 8   1                                               1848   OCH.sub.2 Ph                                                                              H        8   1                                               1849   OCH.sub.2 Ph                                                                              C.sub.2 H.sub.5                                                                         8   1                                               1850   OCOH       CH.sub.3 8   1                                               1851   OCOH       H        8   1                                               1852   OCOH       C.sub.2 H.sub.5                                                                         8   1                                               1853   OCOCH.sub.3                                                                               CH.sub.3 8   1                                               1854   OCOCH.sub.3                                                                               H        8   1                                               1855   OCOCH.sub.3                                                                               C.sub.2 H.sub.5                                                                         8   1                                               1856   OCOC.sub.2 H.sub.5                                                                        CH.sub.3 8   1                                               1857   OCOC.sub.2 H.sub.5                                                                        H        8   1                                               1858   OCOC.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                         8   1                                               1859   OCOC.sub.3 H.sub.7                                                                        CH.sub.3 8   1                                               1860   OCOC.sub.3 H.sub.7                                                                        H        8   1                                               1861   OCOC.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         8   1                                               1862   OCOi-C.sub.3 H.sub.7                                                                      CH.sub.3 8   1                                               1863   OCOi-C.sub.3 H.sub.7                                                                      H        8   1                                               1864   OCOi-C.sub.3 H.sub.7                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1865   OCOC.sub.4 H.sub.9                                                                        CH.sub.3 8   1                                               1866   OCOC.sub.4 H.sub.9                                                                        H        8   1                                               1867   OCOC.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         8   1                                               1868   OCOi-C.sub.4 H.sub.9                                                                      CH.sub.3 8   1                                               1869   OCOi-C.sub.4 H.sub.9                                                                      H        8   1                                               1870   OCOi-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1871   OCOt-C.sub.4 H.sub.9                                                                      CH.sub.3 8   1                                               1872   OCOt-C.sub.4 H.sub.9                                                                      H        8   1                                               1873   OCOt-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1874   OCOC.sub.15 H.sub.31                                                                      CH.sub.3 8   1                                               1875   OCOC.sub.15 H.sub.31                                                                      H        8   1                                               1876   OCOC.sub.15 H.sub.31                                                                      C.sub. 2 H.sub.5                                                                        8   1                                               1877   OCOC.sub.15 H.sub.29                                                                      CH.sub.3 8   1                                               1878   OCOC.sub.15 H.sub.29                                                                      H        8   1                                               1879   OCOC.sub.15 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1880   OCOC.sub.17 H.sub.35                                                                      CH.sub.3 8   1                                               1881   OCOC.sub.17 H.sub.35                                                                      H        8   1                                               1882   OCOC.sub.17 H.sub.35                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1883   OCOC.sub.17 H.sub.33                                                                      CH.sub.3 8   1                                               1884   OCOC.sub.17 H.sub.33                                                                      H        8   1                                               1885   OCOC.sub.17 H.sub.33                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1886   OCOC.sub.17 H.sub.31                                                                      CH.sub.3 8   1                                               1887   OCOC.sub.17 H.sub.31                                                                      H        8   1                                               1888   OCOC.sub.17 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1889   OCOC.sub.17 H.sub.29                                                                      CH.sub.3 8   1                                               1890   OCOC.sub.17 H.sub.29                                                                      H        8   1                                               1891   OCOC.sub.17 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1892   OCOC.sub.19 4.sub.31                                                                      CH.sub.3 8   1                                               1893   OCOC.sub.19 H.sub.31                                                                      H        8   1                                               1894   OCOC.sub.19 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         8   1                                               1895   OCOPh      CH.sub.3 8   1                                               1896   OCOPh      H        8   1                                               1897   OCOPh      C.sub.2 H.sub.5                                                                         8   1                                               1898   OH         CH.sub.3 8   1                                               1899   OH         H        7   1                                               1900   OH         C.sub.2 H.sub.5                                                                         7   1                                               1901   O          CH.sub.3 7   1                                               1902   O          H        7   1                                               1903   O          C.sub.2 H.sub.5                                                                         7   1                                               1904   OCH.sub.3  CH.sub.3 7   1                                               1905   OCH.sub.3  H        7   1                                               1906   OCH.sub.3  C.sub.2 H.sub.5                                                                         7   1                                               1907   OC.sub.2 H.sub.5                                                                          CH.sub.3 7   1                                               1908   OC.sub.2 H.sub.5                                                                          H        7   1                                               1909   OC.sub.2 H.sub.5                                                                          C.sub.2 H.sub.5                                                                         7   1                                               1910   OC.sub.3 H.sub.7                                                                          CH.sub.3 7   1                                               1911   OC.sub.3 H.sub.7                                                                          H        7   1                                               1912   OC.sub.3 H.sub.7                                                                          C.sub.2 H.sub.5                                                                         7   1                                               1913   Oi-C.sub.3 H.sub.7                                                                        CH.sub.3 7   1                                               1914   Oi-C.sub.3 H.sub.7                                                                        H        7   1                                               1915   Oi-C.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         7   1                                               1916   OC.sub.4 H.sub.9                                                                          CH.sub.3 7   1                                               1917   OC.sub.4 H.sub.9                                                                          H        7   1                                               1918   OC.sub.4 H.sub.9                                                                          C.sub.2 H.sub.5                                                                         7   1                                               1919   Oi-C.sub.4 H.sub.9                                                                        CH.sub.3 7   1                                               1920   Oi-C.sub.4 H.sub.9                                                                        H        7   1                                               1921   Oi-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         7   1                                               1922   Ot-C.sub.4 H.sub.9                                                                        CH.sub.3 7   1                                               1923   Ot-C.sub.4 H.sub.9                                                                        H        7   1                                               1924   Ot-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         7   1                                               1925   OPh        CH.sub.3 7   1                                               1926   OPh        H        7   1                                               1927   OPh        C.sub.2 H.sub.5                                                                         7   1                                               1928   OCH.sub.2 Ph                                                                              CH.sub.3 7   1                                               1929   OCH.sub.2 Ph                                                                              H        7   1                                               1930   OCH.sub.2 Ph                                                                              C.sub.2 H.sub.5                                                                         7   1                                               1931   OCOH       CH.sub.3 7   1                                               1932   OCOH       H        7   1                                               1933   OCOH       C.sub.2 H.sub.5                                                                         7   1                                               1934   OCOCH.sub.3                                                                               CH.sub.3 7   1                                               1935   OCOCH.sub.3                                                                               H        7   1                                               1936   OCOCH.sub.3                                                                               C.sub.2 H.sub.5                                                                         7   1                                               1937   OCOC.sub.2 H.sub.5                                                                        CH.sub.3 7   1                                               1938   OCOC.sub.2 H.sub.5                                                                        H        7   1                                               1939   OCOC.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                         7   1                                               1940   OCOC.sub.3 H.sub.7                                                                        CH.sub.3 7   1                                               1941   OCOC.sub.3 H.sub.7                                                                        H        7   1                                               1942   OCOC.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         7   1                                               1943   OCOi-C.sub.3 H.sub.7                                                                      CH.sub.3 7   1                                               1944   OCOi-C.sub.3 H.sub.7                                                                      H        7   1                                               1945   OCOi-C.sub.3 H.sub.7                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1946   OCOC.sub.4 H.sub.9                                                                        CH.sub.3 7   1                                               1947   OCOC.sub.4 H.sub.9                                                                        H        7   1                                               1948   OCOC.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         7   1                                               1949   OCOi-C.sub.4 H.sub.9                                                                      CH.sub.3 7   1                                               1950   OCOi-C.sub.4 H.sub.9                                                                      H        7   1                                               1951   OCOi-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1952   OCOt-C.sub.4 H.sub.9                                                                      CH.sub.3 7   1                                               1953   OCOt-C.sub.4 H.sub.9                                                                      H        7   1                                               1954   OCOt-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1955   OCOC.sub.15 H.sub.31                                                                      CH.sub.3 7   1                                               1956   OCOC.sub.15 H.sub.31                                                                      H        7   1                                               1957   OCOC.sub.15 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1958   OCOC.sub.15 H.sub.29                                                                      CH.sub.3 7   1                                               1959   OCOC.sub.15 H.sub.29                                                                      H        7   1                                               1960   OCOC.sub.15 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1961   OCOC.sub.17 H.sub.35                                                                      CH.sub.3 7   1                                               1962   OCOC.sub.17 H.sub.35                                                                      H        7   1                                               1963   OCOC.sub.17 H.sub.35                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1964   OCOC.sub.17 H.sub.33                                                                      CH.sub.3 7   1                                               1965   OCOC.sub.17 H.sub.33                                                                      H        7   1                                               1966   OCOC.sub.17 H.sub.33                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1967   OCOC.sub.17 H.sub.31                                                                      CH.sub.3 7   1                                               1968   OCOC.sub.17 H.sub.31                                                                      H        7   1                                               1969   OCOC.sub.17 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1970   OCOC.sub.17 H.sub.29                                                                      CH.sub.3 7   1                                               1971   OCOC.sub.17 H.sub.29                                                                      H        7   1                                               1972   OCOC.sub.17 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1973   OCOC.sub.19 H.sub.31                                                                      CH.sub.3 7   1                                               1974   OCOC.sub.19 H.sub.31                                                                      H        7   1                                               1975   OCOC.sub.19 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         7   1                                               1976   OCOPh      CH.sub.3 7   1                                               1977   OCOPh      H        7   1                                               1978   OCOPh      C.sub.2 H.sub.5                                                                         7   1                                               1979   OH         CH.sub.3 8   2                                               1980   OH         H        8   2                                               1981   OH         C.sub.2 H.sub.5                                                                         8   2                                               1982   O          CH.sub.3 8   2                                               1983   O          H        8   2                                               1984   O          C.sub.2 H.sub.5                                                                         8   2                                               1985   OCH.sub.3  CH.sub.3 8   2                                               1986   OCH.sub.3  H        8   2                                               1987   OCH.sub.3  C.sub.2 H.sub.5                                                                         8   2                                               1988   OC.sub.2 H.sub.5                                                                          CH.sub.3 8   2                                               1989   OC.sub.2 H.sub.5                                                                          H        8   2                                               1990   OC.sub.2 H.sub.5                                                                          C.sub.2 H.sub.5                                                                         8   2                                               1991   OC.sub.3 H.sub.7                                                                          CH.sub.3 8   2                                               1992   OC.sub.3 H.sub.7                                                                          H        8   2                                               1993   OC.sub.3 H.sub.7                                                                          C.sub.2 H.sub.5                                                                         8   2                                               1994   Oi-C.sub.3 H.sub.7                                                                        CH.sub.3 8   2                                               1995   Oi-C.sub.3 H.sub.7                                                                        H        8   2                                               1996   Oi-C.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         8   2                                               1997   OC.sub.4 H.sub.9                                                                          CH.sub.3 8   2                                               1998   OC.sub.4 H.sub.9                                                                          H        8   2                                               1999   OC.sub.4 H.sub.9                                                                          C.sub.2 H.sub.5                                                                         8   2                                               2000   Oi-C.sub.4 H.sub.9                                                                        CH.sub.3 8   2                                               2001   Oi-C.sub.4 H.sub.9                                                                        H        8   2                                               2002   Oi-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         8   2                                               2003   Ot-C.sub.4 H.sub.9                                                                        CH.sub.3 8   2                                               2004   Ot-C.sub.4 H.sub.9                                                                        H        8   2                                               2005   Ot-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         8   2                                               2006   OPh        CH.sub.3 8   2                                               2007   OPh        H        8   2                                               2008   OPh        C.sub.2 H.sub.5                                                                         8   2                                               2009   OCH.sub.2 Ph                                                                              CH.sub.3 8   2                                               2010   OCH.sub.2 Ph                                                                              H        8   2                                               2011   OCH.sub.2 Ph                                                                              C.sub.2 H.sub.5                                                                         8   2                                               2012   OCOH       CH.sub.3 8   2                                               2013   OCOH       H        8   2                                               2014   OCOH       C.sub.2 H.sub.5                                                                         8   2                                               2015   OCOCH.sub.3                                                                               CH.sub.3 8   2                                               2016   OCOCH.sub.3                                                                               H        8   2                                               2017   OCOCH.sub.3                                                                               C.sub.2 H.sub. 5                                                                        8   2                                               2018   OCOC.sub.2 H.sub.5                                                                        CH.sub.3 8   2                                               2019   OCOC.sub.2 H.sub.5                                                                        H        8   2                                               2020   OCOC.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                         8   2                                               2021   OCOC.sub.3 H.sub.7                                                                        CH.sub.3 8   2                                               2022   OCCO.sub.3 H.sub.7                                                                        H        8   2                                               2023   OCOC.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         8   2                                               2024   OCOi-C.sub.3 H.sub.7                                                                      CH.sub.3 8   2                                               2025   OCOi-C.sub.3 H.sub.7                                                                      H        8   2                                               2026   OCOi-C.sub.3 H.sub.7                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2027   OCOC.sub.4 H.sub.9                                                                        CH.sub.3 8   2                                               2028   OCOC.sub.4 H.sub.9                                                                        H        8   2                                               2029   OCOC.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         8   2                                               2030   OCOi-C.sub.4 H.sub.9                                                                      CH.sub.3 8   2                                               2031   OCOi-C.sub.4 H.sub.9                                                                      H        8   2                                               2032   OCOi-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2033   OCOt-C.sub.4 H.sub.9                                                                      CH.sub.3 8   2                                               2034   OCOt-C.sub.4 H.sub.9                                                                      H        8   2                                               2035   OCOt-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2036   OCOC.sub.15 H.sub.31                                                                      CH.sub.3 8   2                                               2037   OCOC.sub.15 H.sub.31                                                                      H        8   2                                               2038   OCOC.sub.15 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2039   OCOC.sub.15 H.sub.29                                                                      CH.sub.3 8   2                                               2040   OCOC.sub.15 H.sub.29                                                                      H        8   2                                               2041   OCOC.sub.15 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2042   OCOC.sub.17 H.sub.35                                                                      CH.sub.3 8   2                                               2043   OCOC.sub.17 H.sub.35                                                                      H        8   2                                               2044   OCOC.sub.17 H.sub.35                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2045   OCOC.sub.17 H.sub.33                                                                      CH.sub.3 8   2                                               2046   OCOC.sub.17 H.sub.33                                                                      H        8   2                                               2047   OCOC.sub.17 H.sub.33                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2048   OCOC.sub.17 H.sub.31                                                                      CH.sub.3 8   2                                               2049   OCOC.sub.17 H.sub.31                                                                      H        8   2                                               2050   OCOC.sub.17 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2051   OCOC.sub.17 H.sub.29                                                                      CH.sub.3 8   2                                               2052   OCOC.sub.17 H.sub.29                                                                      H        8   2                                               2053   OCOC.sub.17 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2054   OCOC.sub.19 H.sub.31                                                                      CH.sub.3 8   2                                               2055   OCOC.sub.19 H.sub.31                                                                      H        8   2                                               2056   OCOC.sub.19 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         8   2                                               2057   OCOPh      CH.sub.3 8   2                                               2058   OCOPh      H        8   2                                               2059   OCOPh      C.sub.2 H.sub.5                                                                         8   2                                               2060   OH         CH.sub.3 7   2                                               2061   OH         H        7                                                   2062   OH         C.sub.2 H.sub.5                                                                         7   2                                               2063   O          CH.sub.3 7   2                                               2064   O          H        7   2                                               2065   O          C.sub.2 H.sub.5                                                                         7   2                                               2066   OCH.sub.3  CH.sub.2 7   2                                               2067   OCH.sub.3  H        7   2                                               2068   OCH.sub.3  C.sub.2 H.sub.5                                                                         7   2                                               2069   OC.sub.2 H.sub.5                                                                          CH.sub.3 7   2                                               2070   OC.sub.2 H.sub.5                                                                          H        7   2                                               2071   OC.sub.2 H.sub.5                                                                          C.sub.2 H.sub.5                                                                         7   2                                               2072   OC.sub.3 H.sub.7                                                                          CH.sub.3 7   2                                               2073   OC.sub.3 H.sub.7                                                                          H        7   2                                               2074   OC.sub.3 H.sub.7                                                                          C.sub.2 H.sub.5                                                                         7   2                                               2075   Oi-C.sub.3 H.sub.7                                                                        CH.sub.3 7   2                                               2076   Oi-C.sub.3 H.sub.7                                                                        H        7   2                                               2077   Oi-C.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         7   2                                               2078   OC.sub.4 H.sub.9                                                                          CH.sub.3 7   2                                               2079   OC.sub.4 H.sub.9                                                                          H        7   2                                               2080   OC.sub.4 H.sub.9                                                                          C.sub.2 H.sub.5                                                                         7   2                                               2081   Oi-C.sub.4 H.sub.9                                                                        CH.sub.3 7   2                                               2082   Oi-C.sub.4 H.sub.9                                                                        H        7   2                                               2083   Oi-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         7   2                                               2084   Ot-C.sub.4 H.sub.9                                                                        CH.sub.3 7   2                                               2085   Ot-C.sub.4 H.sub.9                                                                        H        7   2                                               2086   Ot-C.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         7   2                                               2087   OPh        CH.sub.3 7   2                                               2088   OPh        H        7   2                                               2089   OPh        C.sub.2 H.sub.5                                                                         7   2                                               2090   OCH.sub.2 Ph                                                                              CH.sub.3 7   2                                               2091   OCH.sub.2 Ph                                                                              H        7   2                                               2092   OCH.sub.2 Ph                                                                              C.sub.2 H.sub.5                                                                         7   2                                               2093   OCOH       CH.sub.3 7   2                                               2094   OCOH       H        7   2                                               2095   OCOH       C.sub.2 H.sub.5                                                                         7   2                                               2096   OCOCH.sub.3                                                                               CH.sub.3 7   2                                               2097   OCOCH.sub.3                                                                               H        7   2                                               2098   OCOCH.sub.3                                                                               C.sub.2 H.sub.5                                                                         7   2                                               2099   OCOC.sub.2 H.sub.5                                                                        CH.sub.3 7   2                                               2100   OCOC.sub.2 H.sub.5                                                                        H        7   2                                               2101   OCOC.sub.2 H.sub.5                                                                        C.sub.2 H.sub.5                                                                         7   2                                               2101   OCOC.sub.3 H.sub.7                                                                        CH.sub.3 7   2                                               2103   OCOC.sub.3 H.sub.7                                                                        H        7   2                                               2104   OCOC.sub.3 H.sub.7                                                                        C.sub.2 H.sub.5                                                                         7   2                                               2105   OCOi-C.sub.3 H.sub.7                                                                      CH.sub.3 7   2                                               2106   OCOi-C.sub.3 H.sub.7                                                                      H        7   2                                               2107   OCOi-C.sub.3 H.sub.7                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2108   OCOC.sub.4 H.sub.9                                                                        CH.sub.3 7   2                                               2109   OCOC.sub.4 H.sub.9                                                                        H        7   2                                               2110   OCOC.sub.4 H.sub.9                                                                        C.sub.2 H.sub.5                                                                         7   2                                               2111   OCOi-C.sub.4 H.sub.9                                                                      CH.sub.3 7   2                                               2112   OCOi-C.sub.4 H.sub.9                                                                      H        7   2                                               2113   OCOi-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2114   OCOt-C.sub.4 H.sub.9                                                                      CH.sub.3 7   2                                               2115   OCOt-C.sub.4 H.sub.9                                                                      H        7   2                                               2116   OCOt-C.sub.4 H.sub.9                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2117   OCOC.sub.15 H.sub.31                                                                      CH.sub.3 7   2                                               2118   OCOC.sub.15 H.sub.31                                                                      H        7   2                                               2119   OCOC.sub.15 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2120   OCOC.sub.15 H.sub.29                                                                      CH.sub.3 7   2                                               2121   OCOC.sub.15 H.sub.29                                                                      H        7   2                                               2122   OCOC.sub.15 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2123   OCOC.sub.17 H.sub.35                                                                      CH.sub.3 7   2                                               2124   OCOC.sub.17 H.sub.35                                                                      H        7   2                                               2125   OCOC.sub.17 H.sub.35                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2126   OCOC.sub.17 H.sub.33                                                                      CH.sub.3 7   2                                               2127   OCOC.sub.17 H.sub.33                                                                      H        7   2                                               2128   OCOC.sub.17 H.sub.33                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2129   OCOC.sub.17 H.sub.31                                                                      CH.sub.3 7   2                                               2130   OCOC.sub.17 H.sub.31                                                                      H        7   2                                               2131   OCOC.sub. 17 H.sub.31                                                                     C.sub.2 H.sub.5                                                                         7   2                                               2132   OCOC.sub.17 H.sub.29                                                                      CH.sub.3 7   2                                               2133   OCOC.sub.17 H.sub.29                                                                      H        7   2                                               2134   OCOC.sub.17 H.sub.29                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2135   OCOC.sub.19 H.sub.31                                                                      CH.sub.3 7   2                                               2136   OCOC.sub.19 H.sub.31                                                                      H        7   2                                               2137   OCOC.sub.19 H.sub.31                                                                      C.sub.2 H.sub.5                                                                         7   2                                               2138   OCOPh      CH.sub.3 7   2                                               2139   OCOPh      H        7   2                                               2140   OCOPh      C.sub.2 H.sub.5                                                                         7   2                                               ______________________________________                                          *provided that when n = 2, the upper side chain (R) is not ergosterol.   

                                      TABLE 10                                     __________________________________________________________________________      ##STR44##                                                                     No.                                                                               R.sub.1                                                                               R.sub.2                                                                           R.sub.3       R.sub.4                                                                             D No.                                                                               M.P.                                      __________________________________________________________________________     2141                                                                              OH     CH.sub.3                                                                          CH.sub.3      H    8 66a                                          2142                                                                              OH     CH.sub.3                                                                          H             H    8                                              2143                                                                              OH     CH.sub.3                                                                          CHCH.sub.2    H    8                                              2144                                                                              OH     CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    8                                              2145                                                                              OH     CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    8                                              2146                                                                              OH     CH.sub.3                                                                          CHO           H    8                                              2147                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2148                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    H    8                                              2149                                                                              OH     CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    8                                              2150                                                                              OH     CH.sub.3                                                                          CHNOH         H    8                                              2151                                                                              OH     CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    8                                              2152                                                                              OH     CH.sub.3                                                                          CHOHCHCH.sub. 2(S)                                                                           H    8                                              2153                                                                              OH     H  CH.sub.3      H    8                                              2154                                                                              OH     H  H             H    8 70a                                          2155                                                                              OH     H  CHCH.sub.2    H    8                                              2156                                                                              OH     H  CHOHCH.sub.2 OH(R)                                                                           H    8                                              2157                                                                              OH     H  CHOHCH.sub.2 OH(S)                                                                           H    8                                              2158                                                                              OH     H  CHO           H    8                                              2159                                                                              OH     H  CH.sub.2 OH   H    8                                              2160                                                                              OH     H  CO.sub.2 H    H    8                                              2161                                                                              OH     H  CO.sub.2 CH.sub.3                                                                            H    8                                              2162                                                                              OH     H  CHNOH         H    8                                              2163                                                                              OH     H  CHOHCHCH.sub.2(R)                                                                            H    8                                              2164                                                                              OH     H  CHOHCHCH.sub.2(S)                                                                            H    8                                              2165                                                                              OH     CH.sub.3                                                                          C.sub.2 H.sub.5                                                                              H    8                                              2166                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHCH.sub.2                                                                          H    8                                              2167                                                                              OH     CH.sub.3                                                                          CCH           H    8                                              2168                                                                              OH     CH.sub.3                                                                          CH.sub.2 Ph   H    8                                              2169                                                                              OH     CH.sub.3                                                                          CH.sub.2 OCH.sub.3                                                                           H    8                                              2170                                                                              OH     CH.sub.3                                                                          CH.sub.2 OCOCH.sub.3                                                                         H    8                                              2171                                                                              OH     CH.sub.3                                                                          CH.sub.2 SH   H    8                                              2172                                                                              OH     CH.sub.3                                                                          CH.sub.2 SCH.sub.3                                                                           H    8                                              2173                                                                              OH     CH.sub.3                                                                          CH.sub.2 SCOCH.sub.3                                                                         H    8                                              2174                                                                              OH     CH.sub.3                                                                          CH.sub.2 NH.sub.2                                                                            H    8                                              2175                                                                              OH     CH.sub. 3                                                                         CH.sub.2 NHCH.sub.3                                                                          H    8                                              2176                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHCOCH.sub.3                                                                        H    8                                              2177                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHCSCH.sub.3                                                                        H    8                                              2178                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHC(NH)CH.sub.3                                                                     H    8                                              2179                                                                              OH     CH.sub.3                                                                          COCH.sub.3    H    8                                              2180                                                                              OH     CH.sub.3                                                                          COCHCH.sub.2  H    8                                              2181                                                                              OH     CH.sub.3                                                                          CSCH.sub.3    H    8                                              2182                                                                              OH     CH.sub.3                                                                          CSCHCH.sub.2  H    8                                              2183                                                                              OH     CH.sub.3                                                                          C(NH)CH.sub.3 H    8                                              2184                                                                              OH     CH.sub.3                                                                          CO.sub.2 C.sub.2 H.sub.5                                                                     H    8                                              2185                                                                              OH     CH.sub.3                                                                          COSCH.sub.3   H    8                                              2186                                                                              OH     CH.sub.3                                                                          CONH.sub.2    H    8                                              2187                                                                              OH     CH.sub.3                                                                          CONHCH.sub.3  H    8                                              2188                                                                              OH     CH.sub.3                                                                          CONHCOCH.sub.3                                                                               H    8                                              2189                                                                              OH     CH.sub.3                                                                          CSNH.sub.2    H    8                                              2190                                                                              OH     CH.sub.3                                                                          CSNHCH.sub.3  H    8                                              2191                                                                              OH     CH.sub.3                                                                          CSNHCOCH.sub.3                                                                               H    8                                              2192                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 OH                                                                         H    8                                              2193                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 OCH.sub.3                                                                  H    8                                              2194                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 OCOCH.sub.3                                                                H    8                                              2195                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 SH                                                                         H    8                                              2196                                                                              OH     CH.sub.3                                                                          CH.sub. 2 CH.sub.2 SCH.sub.3                                                                 H    8                                              2197                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 SCOCH.sub.3                                                                H    8                                              2198                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NH.sub.2                                                                   H    8                                              2199                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHCH.sub.3                                                                 H    8                                              2200                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHCOCH.sub.3                                                               H    8                                              2201                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHO  H    8                                              2202                                                                              OH     CH.sub.3                                                                          CH.sub.2 COCH.sub.3                                                                          H    8                                              2203                                                                              OH     CH.sub.3                                                                          CH.sub.2 COCHCH.sub.2                                                                        H    8                                              2204                                                                              OH     CH.sub.3                                                                          CH.sub.2 CSCH.sub.3                                                                          H    8                                              2205                                                                              OH     CH.sub.3                                                                          CH.sub.2 CSCHCH.sub.2                                                                        H    8                                              2206                                                                              OH     CH.sub.3                                                                          CH.sub.2 C(NH)CH.sub.3                                                                       H    8                                              2207                                                                              OH     CH.sub.3                                                                          CH.sub.2 CO.sub.2 CH.sub.3                                                                   H    8                                              2208                                                                              OH     CH.sub.3                                                                          CH.sub.2 COSCH.sub.3                                                                         H    8                                              2209                                                                              OH     CH.sub.3                                                                          CH.sub.2 CONH.sub.2                                                                          H    8                                              2210                                                                              OH     CH.sub.3                                                                          CH.sub.2 CONHCH.sub.3                                                                        H    8                                              2211                                                                              OH     CH.sub.3                                                                          CH.sub.2 CONHCOCH.sub.3                                                                      H    8                                              2212                                                                              OH     CH.sub.3                                                                          CH.sub.2 CSNH.sub.2                                                                          H    8                                              2213                                                                              OH     CH.sub.3                                                                          CH.sub.2 C(NH)CH.sub.3                                                                       H    8                                              2214                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 Cl                                                                         H    8                                              2215                                                                              OH     CH.sub.3                                                                          CN            H    8                                              2216                                                                              OH     CH.sub.3                                                                          CHNOCH.sub.3  H    8                                              2217                                                                              OH     CH.sub.3                                                                          CHNOCOCH.sub.3                                                                               H    8                                              2218                                                                              OH     CH.sub.3                                                                          CHNNH.sub.2   H    8                                              2219                                                                              OH     CH.sub.3                                                                          CHNNHCH.sub.3 H    8                                              2220                                                                              OH     CH.sub.3                                                                          CHNHCOCH.sub.3                                                                               H    8                                              2221                                                                              OH     CH.sub.3                                                                          CHNNHCSCH.sub.3                                                                              H    8                                              2222                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHOH H    8                                              2223                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHOCH.sub.3                                                                         H    8                                              2224                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHOCOCH.sub.3                                                                       H    8                                              2225                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHNH.sub.2                                                                          H    8                                              2226                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHNHCH.sub.3                                                                        H    8                                              2227                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHNHCOCH.sub.3                                                                      H    8                                              2228                                                                              OH     CH.sub.3                                                                          CH.sub.2 NHNHCSCH.sub.3                                                                      H    8                                              2229                                                                              OH     CH.sub.3                                                                          CH.sub.2 CN   H    8                                              2230                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNOH                                                                               H    8                                              2231                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNOCH.sub.3                                                                        H    8                                              2232                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNOCOCH.sub.3                                                                      H    8                                              2233                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNNH.sub.2                                                                         H    8                                              2234                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNNHCH.sub.3                                                                       H    8                                              2235                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNNHCOCH.sub.3                                                                     H    8                                              2236                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHNNHCSCH.sub.3                                                                     H    8                                              2237                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHOH                                                                       H    8                                              2238                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHOCH.sub.3                                                                H    8                                              2239                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHOCOCH.sub.3                                                              H    8                                              2240                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNH.sub.2                                                                 H    8                                              2241                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNHCH.sub.3                                                               H    8                                              2242                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNHCOCH.sub.3                                                             H    8                                              2243                                                                              OH     CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNHCSCH.sub.3                                                             H    8                                              2244                                                                              OH     CH.sub.3                                                                          CONHOH        H    8                                              2245                                                                              OH     CH.sub.3                                                                          CONHOCH.sub.3 H    8                                              2246                                                                              OH     CH.sub.3                                                                          CONHOCOCH.sub.3                                                                              H    8                                              2247                                                                              OH     CH.sub.3                                                                          CSNHOH        H    8                                              2248                                                                              OH     CH.sub.3                                                                          CSNHCOCH.sub.3                                                                               H    8                                              2249                                                                              OH     CH.sub.3                                                                          CSNHOCOCH.sub.3                                                                              H    8                                              2250                                                                              OH     CH.sub.3                                                                          CHCHCHO       H    8                                              2251                                                                              OH     CH.sub.3                                                                          CHCHCOCH.sub.3                                                                               H    8                                              2252                                                                              OH     CH.sub.3                                                                          CHCHCSCH.sub.3                                                                               H    8                                              2253                                                                              OH     CH.sub.3                                                                          CHCHCHNH      H    8                                              2254                                                                              OH     CH.sub.3                                                                          CHCHC(NH)CH.sub.3                                                                            H    8                                              2255                                                                              OH     CH.sub.3                                                                          CCCHO         H    8                                              2256                                                                              OH     CH.sub.3                                                                          CCCOCH.sub.3  H    8                                              2257                                                                              OH     CH.sub.3                                                                          CCCSCH.sub.3  H    8                                              2258                                                                              OH     CH.sub.3                                                                          CCCHNH        H    8                                              2259                                                                              OH     CH.sub.3                                                                          CCC(NH)CH.sub.3                                                                              H    8                                              2260                                                                              OH     CH.sub.3                                                                          CHCHCH.sub.2 Cl                                                                              H    8                                              2261                                                                              OH     CH.sub.3                                                                          CCCH.sub.2 Cl H    8                                              2262                                                                              OH     CH.sub.3                                                                          CHCHCH.sub.2 OCOCH.sub.3                                                                     H    8                                              2263                                                                              OH     CH.sub.3                                                                          CCCH.sub.2 OCOCH.sub.3                                                                       H    8                                              2264                                                                              OH     CH.sub.3                                                                          CH.sub.2 CHOHCH.sub.2 OH                                                                     H    8                                              2265                                                                              OH     CH.sub.3                                                                          CHOHCHOHCH.sub.2 OH                                                                          H    8                                              2266                                                                              OH     CH.sub.3                                                                           ##STR45##    H    8                                              2267                                                                              OH     CH.sub.3                                                                           ##STR46##    H    8                                              2268                                                                              OH     CH.sub.3                                                                           ##STR47##    H    8                                              2269                                                                              OH     H  CH.sub.2 SH   H    8                                              2270                                                                              OH     H  CH.sub.2 NH.sub.2                                                                            H    8                                              2271                                                                              OH     H  COCH.sub.3    H    8                                              2272                                                                              OH     H  CONH.sub.2    H    8                                              2273                                                                              OH     H  CSNH.sub.2    H    8                                              2274                                                                              OH     H  CH.sub.2 CH.sub.2 OH                                                                         H    8                                              2275                                                                              OH     H  CH.sub. 2 CHO H    8                                              2276                                                                              OH     H  CH.sub.2 COCH.sub.3                                                                          H    8                                              2277                                                                              OH     H  CH.sub.2 CO.sub.2 CH.sub.3                                                                   H    8                                              2278                                                                              OH     H  CH.sub.2 CONH.sub.2                                                                          H    8                                              2279                                                                              OH     H  CH.sub.2 CH.sub.2 Cl                                                                         H    8                                              2280                                                                              OH     H  CN            H    8                                              2281                                                                              OH     H  CHNNH.sub.2   H    8                                              2282                                                                              OH     H  CH.sub.2 NHOH H    8                                              2283                                                                              OH     H  CH.sub.2 NHNH.sub.2                                                                          H    8                                              2284                                                                              OH     H  H.sub.2 CN    H    8                                              2285                                                                              OH     H  CH.sub.2 CHNOH                                                                               H    8                                              2286                                                                              OH     H  CH.sub.2 CHNNH.sub.2                                                                         H    8                                              2287                                                                              OH     H  CH.sub.2 CH.sub.2 NHOH                                                                       H    8                                              2288                                                                              OH     H  CH.sub.2 CH.sub.2 NHNH.sub.2                                                                 H    8                                              2289                                                                              OH     H  CONHOH        H    8                                              2290                                                                              OH     H  CHCHCHO       H    8                                              2291                                                                              OH     H  CHCHCOCH.sub.3                                                                               H    8                                              2292                                                                              OH     H  CHCHCH.sub.2 Cl                                                                              H    8                                              2293                                                                              OH     H  CH.sub.2 CHOHCH.sub.2 OH                                                                     H    8                                              2294                                                                              OH     H                                                                                  ##STR48##    H    8                                              2295                                                                              O      CH.sub.3                                                                          CH.sub.3      H    8                                              2296                                                                              O      CH.sub.3                                                                          H             H    8                                              2297                                                                              O      CH.sub.3                                                                          CHCH.sub.2    H    8                                              2298                                                                              O      CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    8                                              2299                                                                              O      CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    8                                              2300                                                                              O      CH.sub.3                                                                          CHO           H    8                                              2301                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2302                                                                              O      CH.sub.3                                                                          CO.sub.2 H    H    8                                              2303                                                                              O      CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    8                                              2304                                                                              O      CH.sub.3                                                                          CHNOH         H    8                                              2305                                                                              O      CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    8                                              2306                                                                              O      CH.sub.3                                                                          CHOHCHCH.sub.2(S)                                                                            H    8                                              2307                                                                              O      CH.sub.3                                                                          CH.sub.2 SH   H    8                                              2308                                                                              O      CH.sub.3                                                                          CH.sub.2 NHCH.sub.3                                                                          H    8                                              2309                                                                              O      CH.sub.3                                                                          COCH.sub.3    H    8                                              2310                                                                              O      CH.sub.3                                                                          CONH.sub.2    H    8                                              2311                                                                              O      CH.sub.3                                                                          CSNH.sub.2    H    8                                              2312                                                                              O      CH.sub.3                                                                          CH.sub.2 CH.sub.2 OH                                                                         H    8                                              2313                                                                              O      CH.sub.3                                                                          CH.sub.2 CHO  H    8                                              2314                                                                              O      CH.sub.3                                                                          CH.sub.2 COCH.sub.3                                                                          H    8                                              2315                                                                              O      CH.sub.3                                                                          CH.sub.2 CO.sub.2 CH.sub.3                                                                   H    8                                              2316                                                                              O      CH.sub.3                                                                          CH.sub.2 CONH.sub.2                                                                          H    8                                              2317                                                                              O      CH.sub.3                                                                          CH.sub.2 CH.sub.2 Cl                                                                         H    8                                              2318                                                                              O      CH.sub.3                                                                          CN            H    8                                              2319                                                                              O      CH.sub.3                                                                          CHNNHCH.sub.3 H    8                                              2320                                                                              O      CH.sub.3                                                                          CH.sub.2 NHOH H    8                                              2321                                                                              O      CH.sub.3                                                                          CH.sub.2 NHNHCH.sub.3                                                                        H    8                                              2322                                                                              O      CH.sub.3                                                                          CH.sub.2 CN   H    8                                              2323                                                                              O      CH.sub.3                                                                          CH.sub.2 CHNOH                                                                               H    8                                              2324                                                                              O      CH.sub.3                                                                          CH.sub.2 CHNNHCH.sub.3                                                                       H    8                                              2325                                                                              O      CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHOH                                                                       H    8                                              2326                                                                              O      CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNHCH.sub.3                                                               H    8                                              2327                                                                              O      CH.sub.3                                                                          CONHOH        H    8                                              2328                                                                              O      CH.sub.3                                                                          CHCHCHO       H    8                                              2329                                                                              O      CH.sub.3                                                                          CHCHCOCH.sub.3                                                                               H    8                                              2330                                                                              O      CH.sub.3                                                                          CHCHCH.sub.2 Cl                                                                              H    8                                              2331                                                                              O      CH.sub.3                                                                          CH.sub.2 CHOHCH.sub.2 OH                                                                     H    8                                              2332                                                                              O      CH.sub.3                                                                           ##STR49##    H    8                                              2333                                                                              O      H  CH.sub.3      H    8                                              2334                                                                              O      H  H             H    8                                              2335                                                                              O      H  CHCH.sub. 2   H    8                                              2336                                                                              O      H  CHOHCH.sub.2 OH(R)                                                                           H    8                                              2337                                                                              O      H  CHOHCH.sub.2 OH(S)                                                                           H    8                                              2338                                                                              O      H  CHO           H    8                                              2339                                                                              O      H  CH.sub.2 OH   H    8                                              2340                                                                              O      H  CO.sub.2 H    H    8                                              2341                                                                              O      H  CO.sub.2 CH.sub.3                                                                            H    8                                              2342                                                                              O      H  CHNOH         H    8                                              2343                                                                              O      H  CHOHCHCH.sub.2(R)                                                                            H    8                                              2344                                                                              O      H  CHOHCHCH.sub.2(S)                                                                            H    8                                              2345                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      H    8                                              2346                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             H    8                                              2347                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHCH.sub.2    H    8                                              2348                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    8                                              2349                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    8                                              2350                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           H    8                                              2351                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2352                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    H    8                                              2353                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    8                                              2354                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHNOH         H    8                                              2355                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    8                                              2356                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCH CH.sub.2(S)                                                                           H    8                                              2357                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 SH   H    8                                              2358                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 NH.sub.2                                                                            H    8                                              2359                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          COCH.sub.3    H    8                                              2360                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CONH.sub.2    H    8                                              2361                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CSNH.sub.2    H    8                                              2362                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CH.sub.2 OH                                                                         H    8                                              2363                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CHO  H    8                                              2364                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 COCH.sub.3                                                                          H    8                                              2365                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CO.sub.2 CH.sub.3                                                                   H    8                                              2366                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CONH.sub.2                                                                          H    8                                              2367                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CH.sub.2 Cl                                                                         H    8                                              2368                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CN            H    8                                              2369                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHNNH.sub.2   H    8                                              2370                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 NHOH H    8                                              2371                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 NHNH.sub.2                                                                          H    8                                              2372                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CN   H    8                                              2373                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CHNOH                                                                               H    8                                              2374                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CHNNH.sub.2                                                                         H    8                                              2375                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub. 2 CH.sub.2 NHOH                                                                      H    8                                              2376                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNH.sub.2                                                                 H    8                                              2377                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CONHOH        H    8                                              2378                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHCHCHO       H    8                                              2379                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHCHCOCH.sub.3                                                                               H    8                                              2380                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHCHCH.sub.2 Cl                                                                              H    8                                              2381                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 CHOHCH.sub.2 OH                                                                     H    8                                              2382                                                                              OCH.sub.3                                                                             CH.sub.3                                                                           ##STR50##    H    8                                              2383                                                                              OCH.sub.3                                                                             H  CH.sub.3      H    8                                              2384                                                                              OCH.sub.3                                                                             H  H             H    8                                              2385                                                                              OCH.sub.3                                                                             H  CHCH.sub.2    H    8                                              2386                                                                              OCH.sub.3                                                                             H  CHOHCH.sub.2 OH(R)                                                                           H    8                                              2387                                                                              OCH.sub.3                                                                             H  CHOHCH.sub.2 OH(S)                                                                           H    8                                              2388                                                                              OCH.sub.3                                                                             H  CHO           H    8                                              2389                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   H    8                                              2390                                                                              OCH.sub.3                                                                             H  CO.sub.2 H    H    8                                              2391                                                                              OCH.sub.3                                                                             H  CO.sub.2 CH.sub.3                                                                            H    8                                              2392                                                                              OCH.sub.3                                                                             H  CHNOH         H    8                                              2393                                                                              OCH.sub.3                                                                             H  CHOHCHCH.sub.2(R)                                                                            H    8                                              2394                                                                              OCH.sub.3                                                                             H  CHOHCHCH.sub.2(S)                                                                            H    8                                              2395                                                                              OC.sub.2 H.sub.5                                                                      CH.sub. 3                                                                         CH.sub.3      H    8                                              2396                                                                              OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                          CHO           H    8                                              2397                                                                              OC.sub.2 H.sub.5                                                                      CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2398                                                                              OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                          CH.sub.3      H    8                                              2399                                                                              OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                          CHO           H    8                                              2400                                                                              OC.sub.3 H.sub.7                                                                      CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2401                                                                              Oi-C.sub.3 H.sub.7                                                                    CH.sub.3                                                                          CH.sub.3      H    8                                              2402                                                                              OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                          CH.sub.3      H    8                                              2403                                                                              OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                          CHO           H    8                                              2404                                                                              OC.sub.4 H.sub.9                                                                      CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2405                                                                              Oi-C.sub.4 H.sub.9                                                                    CH.sub.3                                                                          CH.sub.3      H    8                                              2406                                                                              Ot-C.sub.4 H.sub.9                                                                    CH.sub.3                                                                          CH.sub.3      H    8                                              2407                                                                              OPh    CH.sub.3                                                                          CH.sub.3      H    8                                              2408                                                                              OPh    CH.sub.3                                                                          CHO           H    8                                              2409                                                                              OPh    CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2410                                                                              OCH.sub.2 Ph                                                                          CH.sub.3                                                                          CH.sub.3      H    8                                              2411                                                                              OCH.sub.2 Ph                                                                          CH.sub.3                                                                          CHO           H    8                                              2412                                                                              OCH.sub.2 Ph                                                                          CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2413                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      H    8                                              2414                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             H    8                                              2415                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHCH.sub.2    H    8                                              2416                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    8                                              2417                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    8                                              2418                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           H    8                                              2419                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2420                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    H    8                                              2421                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    8                                              2422                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHNOH         H    8                                              2423                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    8                                              2424                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCHCH.sub.2(S)                                                                            H    8                                              2425                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 SH   H    8                                              2426                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 NH.sub.2                                                                            H    8                                              2427                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          COCH.sub.3    H    8                                              2428                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CONH.sub.2    H    8                                              2429                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CSNH.sub.2    H    8                                              2430                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CH.sub.2 OH                                                                         H    8                                              2431                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CHO  H    8                                              2432                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 COCH.sub.3                                                                          H    8                                              2433                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CO.sub.2 CH.sub.3                                                                   H    8                                              2434                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CONH.sub.2                                                                          H    8                                              2435                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CH.sub.2 Cl                                                                         H    8                                              2436                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CN            H    8                                              2437                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHNNH.sub.2   H    8                                              2438                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 NHOH H    8                                              2439                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 NHNH.sub.2                                                                          H    8                                              2440                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CN   H    8                                              2441                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CHNOH                                                                               H    8                                              2442                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CHNNH.sub.2                                                                         H    8                                              2443                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHOH                                                                       H    8                                              2444                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CH.sub.2 NHNH.sub.2                                                                 H    8                                              2445                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CONHOH        H    8                                              2446                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHCHCHO       H    8                                              2447                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHCHCOCH.sub.3                                                                               H    8                                              2448                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHCHCH.sub.2 Cl                                                                              H    8                                              2449                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 CHOHCH.sub.2 OH                                                                     H    8                                              2450                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                           ##STR51##    H    8                                              2451                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      H    8                                              2452                                                                              OCOCH.sub.3                                                                           H  H             H    8                                              2453                                                                              OCOCH.sub.3                                                                           H  CHCH.sub.2    H    8                                              2454                                                                              OCOCH.sub.3                                                                           H  CHOHCH.sub.2 OH(R)                                                                           H    8                                              2455                                                                              OCOCH.sub.3                                                                           H  CHOHCH.sub.2 OH(S)                                                                           H    8                                              2456                                                                              OCOCH.sub.3                                                                           H  CHO           H    8                                              2457                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   H    8                                              2458                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    H    8                                              2459                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 CH.sub.3                                                                            H    8                                              2460                                                                              OCOCH.sub.3                                                                           H  CHNOH         H    8                                              2461                                                                              OCOCH.sub.3                                                                           H  CHOHCHCH.sub.2(R)                                                                            H    8                                              2462                                                                              OCOCH.sub.3                                                                           H  CHOHCHCH.sub.2(S)                                                                            H    8                                              2463                                                                              OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                          CH.sub.3      H    8                                              2464                                                                              OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                          CHO           H    8                                              2465                                                                              OCOC.sub.2 H.sub.5                                                                    CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2466                                                                              OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                          CH.sub.3      H    8                                              2467                                                                              OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                          CHO           H    8                                              2468                                                                              OCOC.sub.3 H.sub.7                                                                    CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2469                                                                              OCOi-C.sub.3 H.sub.7                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2470                                                                              OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                          CH.sub.3      H    8                                              2471                                                                              OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                          CHO           H    8                                              2472                                                                              OCOC.sub.4 H.sub.9                                                                    CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2473                                                                              OCOi-C.sub. 4 H.sub.9                                                                 CH.sub.3                                                                          CH.sub.3      H    8                                              2474                                                                              OCOt-C.sub.4 H.sub.9                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2475                                                                              OCOC.sub.15 H.sub.31                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2476                                                                              OCOC.sub.15 H.sub.31                                                                  CH.sub.3                                                                          CHO           H    8                                              2477                                                                              OCOC.sub.15 H.sub.31                                                                  CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2478                                                                              OCOC.sub.15 H.sub.29                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2479                                                                              OCOC.sub.17 H.sub.35                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2480                                                                              OCOC.sub.17 H.sub.33                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2481                                                                              OCOC.sub.17 H.sub.31                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2482                                                                              OCOC.sub.17 H.sub.29                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2483                                                                              OCOC.sub.19 H.sub.31                                                                  CH.sub.3                                                                          CH.sub.3      H    8                                              2484                                                                              OCOPh  CH.sub.3                                                                          CH.sub.3      H    8                                              2485                                                                              OCOPh  CH.sub.3                                                                          CHO           H    8                                              2486                                                                              OCOPh  CH.sub.3                                                                          CH.sub.2 OH   H    8                                              2487                                                                              OH     CH.sub.3                                                                          CH.sub.3      H    7                                              2488                                                                              OH     CH.sub.3                                                                          H             H    7                                              2489                                                                              OH     CH.sub.3                                                                          CHCH.sub.2    H    7                                              2490                                                                              OH     CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    7                                              2491                                                                              OH     CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    7                                              2492                                                                              OH     CH.sub.3                                                                          CHO           H    7                                              2493                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   H    7                                              2494                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    H    7                                              2495                                                                              OH     CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    7                                              2496                                                                              OH     CH.sub.3                                                                          CHNOH         H    7                                              2497                                                                              OH     CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    7                                              2498                                                                              OH     CH.sub.3                                                                          CHOHCHCH.sub.2(S)                                                                            H    7                                              2499                                                                              OH     H  CH.sub.3      H    7                                              2500                                                                              OH     H  H             H    7                                              2501                                                                              OH     H  CHCH.sub.2    H    7                                              2502                                                                              OH     H  CHOHCH.sub.2 OH(R)                                                                           H    7                                              2503                                                                              OH     H  CHOHCH.sub.2 OH(S)                                                                           H    7                                              2504                                                                              OH     H  CHO           H    7                                              2505                                                                              OH     H  CH.sub.2 OH   H    7                                              2506                                                                              OH     H  CO.sub.2 H    H    7                                              2507                                                                              OH     H  CO.sub.2 CH.sub.3                                                                            H    7                                              2508                                                                              OH     H  CHNOH         H    7                                              2509                                                                              OH     H  CHOHCHCH.sub.2(R)                                                                            H    7                                              2510                                                                              OH     H  CHOHCHCH.sub.2(S)                                                                            H    7                                              2511                                                                              O      CH.sub.3                                                                          CH.sub.3      H    7                                              2512                                                                              O      CH.sub.3                                                                          H             H    7                                              2513                                                                              O      CH.sub.3                                                                          CHCH.sub.2    H    7                                              2514                                                                              O      CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    7                                              2515                                                                              O      CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    7                                              2516                                                                              O      CH.sub.3                                                                          CHO           H    7                                              2517                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   H    7                                              2518                                                                              O      CH.sub.3                                                                          CO.sub.2 H    H    7                                              2519                                                                              O      CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    7                                              2520                                                                              O      CH.sub.3                                                                          CHNOH         H    7                                              2521                                                                              O      CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    7                                              2522                                                                              O      CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    7                                              2523                                                                              O      H  CH.sub.3      H    7                                              2524                                                                              O      H  H             H    7                                              2525                                                                              O      H  CHCH.sub.2    H    7                                              2526                                                                              O      H  CHOHCH.sub.2 OH(R)                                                                           H    7                                              2527                                                                              O      H  CHOHCH.sub.2 OH(S)                                                                           H    7                                              2528                                                                              O      H  CHO           H    7                                              2529                                                                              O      H  CH.sub.2 OH   H    7                                              2530                                                                              O      H  CO.sub.2 H    H    7                                              2531                                                                              O      H  CO.sub.2 CH.sub.3                                                                            H    7                                              2532                                                                              O      H  CHNOH         H    7                                              2533                                                                              O      H  CHOHCHCH.sub.2(R)                                                                            H    7                                              2534                                                                              O      H  CHOHCHCH.sub.2(S)                                                                            H    7                                              2535                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      H    7                                              2536                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             H    7                                              2537                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHCH.sub.2    H    7                                              2538                                                                              OCH.sub. 3                                                                            CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    7                                              2539                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    7                                              2540                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           H    7                                              2541                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   H    7                                              2542                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    H    7                                              2543                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    7                                              2544                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHNOH         H    7                                              2545                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    7                                              2546                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHOHCHCH.sub.2(S)                                                                            H    7                                              2547                                                                              OCH.sub.3                                                                             H  CH.sub.3      H    7                                              2548                                                                              OCH.sub.3                                                                             H  H             H    7                                              2549                                                                              OCH.sub.3                                                                             H  CHCH.sub.2    H    7                                              2550                                                                              OCH.sub.3                                                                             H  CHOHCH.sub.2 OH(R)                                                                           H    7                                              2551                                                                              OCH.sub.3                                                                             H  CHOHCH.sub.2 OH(S)                                                                           H    7                                              2552                                                                              OCH.sub.3                                                                             H  CHO           H    7                                              2553                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   H    7                                              2554                                                                              OCH.sub.3                                                                             H  CO.sub.2 H    H    7                                              2555                                                                              OCH.sub.3                                                                             H  CO.sub.2 CH.sub.3                                                                            H    7                                              2556                                                                              OCH.sub.3                                                                             H  CHNOH         H    7                                              2557                                                                              OCH.sub.3                                                                             H  CHOHCHCH.sub.2(R)                                                                            H    7                                              2558                                                                              OCH.sub.3                                                                             H  CHOHCHCH.sub.2(S)                                                                            H    7                                              2559                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      H    7                                              2560                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             H    7                                              2561                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHCH.sub.2    H    7                                              2562                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCH.sub.2 OH(R)                                                                           H    7                                              2563                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCH.sub.2 OH(S)                                                                           H    7                                              2564                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           H    7                                              2565                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   H    7                                              2566                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    H    7                                              2567                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 CH.sub.3                                                                            H    7                                              2568                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHNOH         H    7                                              2569                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCHCH.sub.2(R)                                                                            H    7                                              2570                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHOHCHCH.sub.2(S)                                                                            H    7                                              2571                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      H    7                                              2572                                                                              OCOCH.sub.3                                                                           H  H             H    7                                              2573                                                                              OCOCH.sub.3                                                                           H  CHCH.sub.2    H    7                                              2574                                                                              OCOCH.sub.3                                                                           H  CHOHCH.sub.2 OH(R)                                                                           H    7                                              2575                                                                              OCOCH.sub.3                                                                           H  CHOHCH.sub.2 OH(S)                                                                           H    7                                              2576                                                                              OCOCH.sub.3                                                                           H  CHO           H    7                                              2577                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   H    7                                              2578                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    H    7                                              2579                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 CH.sub.3                                                                            H    7                                              2580                                                                              OCOCH.sub.3                                                                           H  CH NOH        H    7                                              2581                                                                              OCOCH.sub.3                                                                           H  CHOHCHCH.sub.2(R)                                                                            H    7                                              2582                                                                              OCOCH.sub.3                                                                           H  CHOHCHCH.sub.2(S)                                                                            H    7                                              2583                                                                              OH     CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            8                                              2584                                                                              OH     CH.sub.3                                                                          H             CH.sub.3                                                                            8                                              2585                                                                              OH     CH.sub.3                                                                          CHO           CH.sub.3                                                                            8                                              2586                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            8                                              2587                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            8                                              2588                                                                              OH     H  CH.sub.3      CH.sub.3                                                                            8                                              2589                                                                              OH     H  H             CH.sub.3                                                                            8                                              2590                                                                              OH     H  CHO           CH.sub.3                                                                            8                                              2591                                                                              OH     H  CH.sub.2 OH   CH.sub.3                                                                            8                                              2592                                                                              OH     H  CO.sub.2 H    CH.sub.3                                                                            8                                              2593                                                                              O      CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            8                                              2594                                                                              O      CH.sub.3                                                                          H             CH.sub.3                                                                            8                                              2595                                                                              O      CH.sub.3                                                                          CHO           CH.sub.3                                                                            8                                              2596                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            8                                              2597                                                                              O      CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            8                                              2598                                                                              O      H  CH.sub.3      CH.sub.3                                                                            8                                              2599                                                                              O      H  H             CH.sub.3                                                                            8                                              2600                                                                              O      H  CHO           CH.sub.3                                                                            8                                              2601                                                                              O      H  CH.sub.2 OH   CH.sub.3                                                                            8                                              2602                                                                              O      H  CO.sub.2 H    CH.sub.3                                                                            8                                              2603                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            8                                              2604                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             CH.sub.3                                                                            8                                              2605                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           CH.sub.3                                                                            8                                              2606                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            8                                              2607                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            8                                              2608                                                                              OCH.sub.3                                                                             H  CH.sub.3      CH.sub.3                                                                            8                                              2609                                                                              OCH.sub.3                                                                             H  H             CH.sub.3                                                                            8                                              2610                                                                              OCH.sub.3                                                                             H  CHO           CH.sub.3                                                                            8                                              2611                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   CH.sub.3                                                                            8                                              2612                                                                              OCH.sub.3                                                                             H  CH.sub.2 H    CH.sub.3                                                                            8                                              2613                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            8                                              2614                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             CH.sub.3                                                                            8                                              2615                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           CH.sub.3                                                                            8                                              2616                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            8                                              2617                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            8                                              2618                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      CH.sub.3                                                                            8                                              2619                                                                              OCOCH.sub.3                                                                           H  H             CH.sub.3                                                                            8                                              2620                                                                              OCOCH.sub.3                                                                           H  CHO           CH.sub.3                                                                            8                                              2621                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   CH.sub.3                                                                            8                                              2622                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    CH.sub.3                                                                            8                                              2623                                                                              OH     CH.sub.3                                                                          CH.sub.3      CH.sub. 3                                                                           7                                              2624                                                                              OH     CH.sub.3                                                                          H             CH.sub.3                                                                            7                                              2625                                                                              OH     CH.sub.3                                                                          CHO           CH.sub.3                                                                            7                                              2626                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            7                                              2627                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            7                                              2628                                                                              OH     H  CH.sub.3      CH.sub.3                                                                            7                                              2629                                                                              OH     H  H             CH.sub.3                                                                            7                                              2630                                                                              OH     H  CHO           CH.sub.3                                                                            7                                              2631                                                                              OH     H  CH.sub.2 OH   CH.sub.3                                                                            7                                              2632                                                                              OH     H  CO.sub.2 H    CH.sub.3                                                                            7                                              2633                                                                              O      CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            7                                              2634                                                                              O      CH.sub.3                                                                          H             CH.sub.3                                                                            7                                              2635                                                                              O      CH.sub.3                                                                          CHO           CH.sub.3                                                                            7                                              2636                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            7                                              2637                                                                              O      CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            7                                              2638                                                                              O      H  CH.sub.3      CH.sub.3                                                                            7                                              2639                                                                              O      H  H             CH.sub.3                                                                            7                                              2640                                                                              O      H  CHO           CH.sub.3                                                                            7                                              2641                                                                              O      H  CH.sub.2 OH   CH.sub.3                                                                            7                                              2642                                                                              O      H  CO.sub.2 H    CH.sub.3                                                                            7                                              2643                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            7                                              2644                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             CH.sub.3                                                                            7                                              2645                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           CH.sub.3                                                                            7                                              2646                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            7                                              2647                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            7                                              2648                                                                              OCH.sub.3                                                                             H  CH.sub.3      CH.sub.3                                                                            7                                              2649                                                                              OCH.sub.3                                                                             H  H             CH.sub.3                                                                            7                                              2650                                                                              OCH.sub.3                                                                             H  CHO           CH.sub.3                                                                            7                                              2651                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   CH.sub.3                                                                            7                                              2652                                                                              OCH.sub.3                                                                             H  CO.sub.2 H    CH.sub.3                                                                            7                                              2653                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      CH.sub.3                                                                            7                                              2654                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             CH.sub.3                                                                            7                                              2655                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           CH.sub.3                                                                            7                                              2656                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   CH.sub.3                                                                            7                                              2657                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    CH.sub.3                                                                            7                                              2658                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      CH.sub.3                                                                            7                                              2659                                                                              OCOCH.sub.3                                                                           H  H             CH.sub.3                                                                            7                                              2660                                                                              OCOCH.sub.3                                                                           H  CHO           CH.sub.3                                                                            7                                              2661                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   CH.sub.3                                                                            7                                              2662                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    CH.sub.3                                                                            7                                              2663                                                                              OH     CH.sub.3                                                                          CH.sub.3      CHO  8                                              2664                                                                              OH     CH.sub.3                                                                          H             CHO  8                                              2665                                                                              OH     CH.sub.3                                                                          CHO           CHO  8                                              2666                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   CHO  8                                              2667                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    CHO  8                                              2668                                                                              OH     H  CH.sub.3      CHO  8                                              2669                                                                              OH     H  H             CHO  8                                              2670                                                                              OH     H  CHO           CHO  8                                              2671                                                                              OH     H  CH.sub.2 OH   CHO  8                                              2672                                                                              OH     H  CO.sub.2 OH   CHO  8                                              2673                                                                              O      CH.sub.3                                                                          CH.sub.3      CHO  8                                              2674                                                                              O      CH.sub.3                                                                          H             CHO  8                                              2675                                                                              O      CH.sub.3                                                                          CHO           CHO  8                                              2676                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   CHO  8                                              2677                                                                              O      CH.sub.3                                                                          CH.sub.2 H    CHO  8                                              2678                                                                              O      H  CH.sub.3      CHO  8                                              2679                                                                              O      H  H             CHO  8                                              2680                                                                              O      H  CHO           CHO  8                                              2681                                                                              O      H  CH.sub.2 OH   CHO  8                                              2682                                                                              O      H  CO.sub.2 H    CHO  8                                              2683                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      CHO  8                                              2684                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             CHO  8                                              2685                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           CHO  8                                              2686                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   CHO  8                                              2687                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    CHO  8                                              2688                                                                              OCH.sub.3                                                                             H  CH.sub.3      CHO  8                                              2689                                                                              OCH.sub.3                                                                             H  H             CHO  8                                              2690                                                                              OCH.sub.3                                                                             H  CHO           CHO  8                                              2691                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   CHO  8                                              2692                                                                              OCH.sub. 3                                                                            H  CO.sub.2 H    CHO  8                                              2693                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      CHO  8                                              2694                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             CHO  8                                              2695                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           CHO  8                                              2696                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   CHO  8                                              2697                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    CHO  8                                              2698                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      CHO  8                                              2699                                                                              OCOCH.sub.3                                                                           H  H             CHO  8                                              2700                                                                              OCOCH.sub.3                                                                           H  CHO           CHO  8                                              2701                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   CHO  8                                              2702                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    CHO  8                                              2703                                                                              OH     CH.sub.3                                                                          CH.sub.3      CHO  7                                              2704                                                                              OH     CH.sub.3                                                                          H             CHO  7                                              2705                                                                              OH     CH.sub.3                                                                          CHO           CHO  7                                              2706                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   CHO  7                                              2707                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    CHO  7                                              2708                                                                              OH     H  CH.sub.3      CHO  7                                              2709                                                                              OH     H  H             CHO  7                                              2710                                                                              OH     H  CHO           CHO  7                                              2711                                                                              OH     H  CH.sub.2 OH   CHO  7                                              2712                                                                              OH     H  CO.sub.2 H    CHO  7                                              2713                                                                              O      CH.sub.3                                                                          CH.sub.3      CHO  7                                              2714                                                                              O      CH.sub.3                                                                          H             CHO  7                                              2715                                                                              O      CH.sub.3                                                                          CHO           CHO  7                                              2716                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   CHO  7                                              2717                                                                              O      CH.sub.3                                                                          CO.sub.2 H    CHO  7                                              2718                                                                              O      H  CH.sub.3      CHO  7                                              2719                                                                              O      H  H             CHO  7                                              2720                                                                              O      H  CHO           CHO  7                                              2721                                                                              O      H  CH.sub.2 OH   CHO  7                                              2722                                                                              O      H  CO.sub.2 H    CHO  7                                              2723                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      CHO  7                                              2724                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             CHO  7                                              2725                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           CHO  7                                              2726                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   CHO  7                                              2727                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    CHO  7                                              2728                                                                              OCH.sub.3                                                                             H  CH.sub.3      CHO  7                                              2729                                                                              OCH.sub.3                                                                             H  H             CHO  7                                              2730                                                                              OCH.sub.3                                                                             H  CHO           CHO  7                                              2731                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   CHO  7                                              2732                                                                              OCH.sub.3                                                                             H  CO.sub.2 H    CHO  7                                              2733                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      CHO  7                                              2734                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             CHO  7                                              2735                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           CHO  7                                              2736                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   CHO  7                                              2737                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    CHO  7                                              2738                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      CHO  7                                              2739                                                                              OCOCH.sub.3                                                                           H  H             CHO  7                                              2740                                                                              OCOCH.sub.3                                                                           H  CHO           CHO  7                                              2741                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   CHO  7                                              2742                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    CHO  7                                              2743                                                                              OH     CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          8                                              2744                                                                              OH     CH.sub.3                                                                          H             COCH.sub.3                                                                          8                                              2745                                                                              OH     CH.sub.3                                                                          CHO           COCH.sub.3                                                                          8                                              2746                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          8                                              2747                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          8                                              2748                                                                              OH     H  CH.sub.3      COCH.sub.3                                                                          8                                              2749                                                                              OH     H  H             COCH.sub.3                                                                          8                                              2750                                                                              OH     H  CHO           COCH.sub.3                                                                          8                                              2751                                                                              OH     H  CH.sub.2 OH   COCH.sub.3                                                                          8                                              2752                                                                              OH     H  CO.sub.2 H    COCH.sub.3                                                                          8                                              2753                                                                              O      CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          8                                              2754                                                                              O      CH.sub.3                                                                          H             COCH.sub.3                                                                          8                                              2755                                                                              O      CH.sub.3                                                                          CHO           COCH.sub.3                                                                          8                                              2756                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          8                                              2757                                                                              O      CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          8                                              2758                                                                              O      H  CH.sub.3      COCH.sub.3                                                                          8                                              2759                                                                              O      H  H             COCH.sub.3                                                                          8                                              2760                                                                              O      H  CHO           COCH.sub.3                                                                          8                                              2761                                                                              O      H  CH.sub.2 OH   COCH.sub.3                                                                          8                                              2762                                                                              O      H  CO.sub.2 H    COCH.sub.3                                                                          8                                              2763                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          8                                              2764                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             COCH.sub.3                                                                          8                                              2765                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           COCH.sub.3                                                                          8                                              2766                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          8                                              2767                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          8                                              2768                                                                              OCH.sub.3                                                                             H  CH.sub.3      COCH.sub.3                                                                          8                                              2769                                                                              OCH.sub.3                                                                             H  H             COCH.sub.3                                                                          8                                              2770                                                                              OCH.sub.3                                                                             H  CHO           COCH.sub.3                                                                          8                                              2771                                                                              OCH.sub.3                                                                             H  CH.sub.2 OH   COCH.sub.3                                                                          8                                              2772                                                                              OCH.sub.3                                                                             H  CO.sub.2 H    COCH.sub.3                                                                          8                                              2773                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          8                                              2774                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             COCH.sub.3                                                                          8                                              2775                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           COCH.sub.3                                                                          8                                              2776                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          8                                              2777                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          8                                              2778                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      COCH.sub.3                                                                          8                                              2779                                                                              OCOCH.sub.3                                                                           H  H             COCH.sub.3                                                                          8                                              2780                                                                              OCOCH.sub.3                                                                           H  CHO           COCH.sub.3                                                                          8                                              2781                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   COCH.sub.3                                                                          8                                              2782                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    COCH.sub.3                                                                          8                                              2783                                                                              OH     CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          7                                              2784                                                                              OH     CH.sub.3                                                                          H             COCH.sub.3                                                                          7                                              2785                                                                              OH     CH.sub.3                                                                          CHO           COCH.sub.3                                                                          7                                              2786                                                                              OH     CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          7                                              2787                                                                              OH     CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          7                                              2788                                                                              OH     H  CH.sub.3      COCH.sub.3                                                                          7                                              2789                                                                              OH     H  H             COCH.sub.3                                                                          7                                              2790                                                                              OH     H  CHO           COCH.sub.3                                                                          7                                              2791                                                                              OH     H  CH.sub.2 OH   COCH.sub.3                                                                          7                                              2792                                                                              OH     H  CO.sub.2 H    COCH.sub.3                                                                          7                                              2793                                                                              O      CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          7                                              2794                                                                              O      CH.sub.3                                                                          H             COCH.sub.3                                                                          7                                              2795                                                                              O      CH.sub.3                                                                          CHO           COCH.sub.3                                                                          7                                              2796                                                                              O      CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          7                                              2797                                                                              O      CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          7                                              2798                                                                              O      H  CH.sub.3      COCH.sub.3                                                                          7                                              2799                                                                              O      H  H             COCH.sub.3                                                                          7                                              2800                                                                              O      H  CHO           COCH.sub.3                                                                          7                                              2801                                                                              O      H  CH.sub.2 OH   COCH.sub.3                                                                          7                                              2802                                                                              O      H  CO.sub.2 H    COCH.sub.3                                                                          7                                              2803                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          7                                              2804                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          H             COCH.sub.3                                                                          7                                              2805                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CHO           COCH.sub.3                                                                          7                                              2806                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          7                                              2807                                                                              OCH.sub.3                                                                             CH.sub.3                                                                          CO.sub.3 H    COCH.sub.3                                                                          7                                              2808                                                                              OCH.sub.3                                                                             H  CH.sub.3      COCH.sub.3                                                                          7                                              2809                                                                              OCH.sub.3                                                                             H  H             COCH.sub.3                                                                          7                                              2810                                                                              OCH.sub.3                                                                             H  CHO           COCH.sub.3                                                                          7                                              2811                                                                              OCH.sub.3                                                                             H  CH.sub.3 OH   COCH.sub.3                                                                          7                                              2812                                                                              OCH.sub.3                                                                             H  CO.sub.2 OH   COCH.sub.3                                                                          7                                              2813                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.3      COCH.sub.3                                                                          7                                              2814                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          H             COCH.sub.3                                                                          7                                              2815                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CHO           COCH.sub.3                                                                          7                                              2816                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CH.sub.2 OH   COCH.sub.3                                                                          7                                              2817                                                                              OCOCH.sub.3                                                                           CH.sub.3                                                                          CO.sub.2 H    COCH.sub.3                                                                          7                                              2818                                                                              OCOCH.sub.3                                                                           H  CH.sub.3      COCH.sub.3                                                                          7                                              2819                                                                              OCOCH.sub.3                                                                           H  CHO           COCH.sub.3                                                                          7                                              2821                                                                              OCOCH.sub.3                                                                           H  CH.sub.2 OH   COCH.sub.3                                                                          7                                              2822                                                                              OCOCH.sub.3                                                                           H  CO.sub.2 H    COCH.sub.3                                                                          7                                              __________________________________________________________________________

                                      TABLE 11                                     __________________________________________________________________________      ##STR52##                                                                     No. R.sub.1                                                                              R.sub.2                                                                            R.sub.3     R.sub.4                                                                            D  No.                                                                               M.P.                                       __________________________________________________________________________     2823                                                                               OH    CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                2824                                                                               OH    CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                2825                                                                               OH    CH.sub.3                                                                           CHCH.sub.2  CH.sub.3                                                                           8                                                2826                                                                               OH    CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                         CH.sub.3                                                                           8                                                2827                                                                               OH    CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                         CH.sub.3                                                                           8                                                2828                                                                               OH    CH.sub.3                                                                           CHO         CH.sub.3                                                                           8                                                2829                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                2830                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                2831                                                                               OH    CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                          CH.sub.3                                                                           8                                                2832                                                                               OH    CH.sub.3                                                                           CHNOH       CH.sub.3                                                                           8                                                2833                                                                               OH    CH.sub.3                                                                           CHOHCH CH.sub.2(R)                                                                         CH.sub.3                                                                           8                                                2834                                                                               OH    CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                          CH.sub.3                                                                           8                                                2835                                                                               OH    H   CH.sub.3    CH.sub.3                                                                           8                                                2836                                                                               OH    H   H           CH.sub.3                                                                           8                                                2837                                                                               OH    H   CHCH.sub.2  CH.sub.3                                                                           8                                                2838                                                                               OH    H   CHOHCH.sub.2 OH(R)                                                                         CH.sub.3                                                                           8                                                2839                                                                               OH    H   CHOHCH.sub.2 OH(S)                                                                         CH.sub.3                                                                           8                                                2840                                                                               OH    H   CHO         CH.sub.3                                                                           8                                                2841                                                                               OH    H   CH.sub.2 OH CH.sub.3                                                                           8                                                2842                                                                               OH    H   CO.sub.2 H  CH.sub.3                                                                           8                                                2843                                                                               OH    H   CO.sub.2 CH.sub.3                                                                          CH.sub.3                                                                           8                                                2844                                                                               OH    H   CHNOH       CH.sub.3                                                                           8                                                2845                                                                               OH    H   CHOHCHCH.sub.2(R)                                                                          CH.sub.3                                             2846                                                                               OH    H   CHOHCHCH.sub.2(S)                                                                          CH.sub.3                                             2847                                                                               O     CH.sub.3                                                                           CH.sub.3    CH.sub.3                                             2848                                                                               O     CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                2849                                                                               O     CH.sub.3                                                                           CHO         CH.sub.3                                                                           8                                                2850                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                2851                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                2852                                                                               O     H   CH.sub.3    CH.sub.3                                                                           8                                                2853                                                                               O     H   H           CH.sub.3                                                                           8                                                2854                                                                               O     H   CHO         CH.sub.3                                                                           8                                                2855                                                                               O     H   CH.sub.2 OH CH.sub.3                                                                           8                                                2856                                                                               O     H   CO.sub.2 H  CH.sub.3                                                                           8                                                2857                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                2858                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                2859                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                2860                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                2861                                                                               OCH.sub.3                                                                            H   CH.sub.3    CH.sub.3                                                                           8                                                2862                                                                               OCH.sub.3                                                                            H   H           CH.sub.3                                                                           8                                                2863                                                                               OCH.sub.3                                                                            H   CHO         CH.sub.3                                                                           8                                                2864                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CH.sub.3                                                                           8                                                2865                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CH.sub.3                                                                           8                                                2866                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                2867                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                2868                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CH.sub.3                                                                           8                                                2869                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                2870                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                2871                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CH.sub.3                                                                           8                                                2872                                                                               OCOCH.sub.3                                                                          H   H           CH.sub.3                                                                           8                                                2873                                                                               OCOCH.sub.3                                                                          H   CHO         CH.sub.3                                                                           8                                                2874                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CH.sub.3                                                                           8                                                2875                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CH.sub.3                                                                           8                                                2876                                                                               OH    CH.sub. 3                                                                          CH.sub.3    CH.sub.3                                                                           7                                                2877                                                                               OH    CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                2878                                                                               OH    CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                2879                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                2880                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                2881                                                                               OH    H   CH.sub.32   CH.sub.3                                                                           7                                                2882                                                                               OH    H   H           CH.sub.3                                                                           7                                                2883                                                                               OH    H   CHO         CH.sub.3                                                                           7                                                2884                                                                               OH    H   CH.sub.2 OH CH.sub.3                                                                           7                                                2885                                                                               OH    H   CO.sub.2 H  CH.sub.3                                                                           7                                                2886                                                                               O     CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                2887                                                                               O     CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                2888                                                                               O     CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                2889                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                2890                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                2891                                                                               O     H   CH.sub.3    CH.sub.3                                                                           7                                                2892                                                                               O     H   H           CH.sub.3                                                                           7                                                2893                                                                               O     H   CHO         CH.sub.3                                                                           7                                                2894                                                                               O     H   CH.sub.2 OH CH.sub.3                                                                           7                                                2895                                                                               O     H   CO.sub.2 H  CH.sub.3                                                                           7                                                2896                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                2897                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                2898                                                                               OCH.sub.3                                                                            CH.sub. 3                                                                          CHO         CH.sub.3                                                                           7                                                2899                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                2900                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                2901                                                                               OCH.sub.3                                                                            H   CH.sub.3    CH.sub.3                                                                           7                                                2902                                                                               OCH.sub.3                                                                            H   H           CH.sub.3                                                                           7                                                2903                                                                               OCH.sub.3                                                                            H   CHO         CH.sub.3                                                                           7                                                2904                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CH.sub.3                                                                           7                                                2905                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CH.sub.3                                                                           7                                                2906                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                2907                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                2908                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                2909                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                2910                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                2911                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CH.sub.3                                                                           7                                                2912                                                                               OCOCH.sub.3                                                                          H   H           CH.sub.3                                                                           7                                                2913                                                                               OCOCH.sub.3                                                                          H   CHO         CH.sub.3                                                                           7                                                2914                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CH.sub.3                                                                           7                                                2915                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CH.sub.3                                                                           7                                                __________________________________________________________________________

                                      TABLE 12                                     __________________________________________________________________________      ##STR53##                                                                     No. R.sub.1                                                                              R.sub.2                                                                            R.sub.3     R.sub.4                                                                             D  No.                                                                               M.P.                                      __________________________________________________________________________     2916                                                                               OH    CH.sub.3                                                                           CH.sub.3    H    8                                               2917                                                                               OH    CH.sub.3                                                                           H           H    8                                               2918                                                                               OH    CH.sub.3                                                                           CHCH.sub.2  H    8                                               2919                                                                               OH    CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                         H    8                                               2920                                                                               OH    CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                         H    8                                               2921                                                                               OH    CH.sub.3                                                                           CHO         H    8                                               2922                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH H    8                                               2923                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  H    8                                               2924                                                                               OH    CH.sub.3                                                                           CO.sub.2 CH.sub.3                                                                          H    8                                               2925                                                                               OH    CH.sub.3                                                                           CHNOH       H    8                                               2926                                                                               OH    CH.sub.3                                                                           CHOHCHCH.sub.2(R)                                                                          H    8                                               2927                                                                               OH    CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                          H    8                                               2928                                                                               OH    H   CH.sub.3    H    8                                               2929                                                                               OH    H   H           H    8                                               2930                                                                               OH    H   CHCH.sub.2  H    8                                               2931                                                                               OH    H   CHOHCH.sub.2 OH(R)                                                                         H    8                                               2932                                                                               OH    H   CHOHCH.sub.2 OH(S)                                                                         H    8                                               2933                                                                               OH    H   CHO         H    8                                               2934                                                                               OH    H   CH.sub.2 OH H    8                                               2935                                                                               OH    H   CO.sub.2 H  H    8                                               2936                                                                               OH    H   CO.sub.2 CH.sub.3                                                                          H    8                                               2937                                                                               OH    H   CHNOH       H    8                                               2938                                                                               OH    H   CHOHCHCH.sub.2(R)                                                                          H    8                                               2939                                                                               OH    H   CHOHCHCH.sub.2(S)                                                                          H    8                                               2940                                                                               OH    CH.sub.3                                                                           CH.sub.2 SH H    8                                               2941                                                                               OH    CH.sub.3                                                                           CH.sub.2 NH.sub.2                                                                          H    8                                               2942                                                                               OH    CH.sub.3                                                                           COCH.sub.3  H    8                                               2943                                                                               OH    CH.sub.3                                                                           CONH.sub.2  H    8                                               2944                                                                               OH    CH.sub.3                                                                           CSNH.sub.2  H    8                                               2945                                                                               OH    CH.sub.3                                                                           CH.sub.2 CH.sub.2 OH                                                                       H    8                                               2946                                                                               OH    CH.sub.3                                                                           CH.sub.2 CHO                                                                               H    8                                               2947                                                                               OH    CH.sub.3                                                                           CH.sub.2 COCH.sub.3                                                                        H    8                                               2948                                                                               OH    CH.sub.3                                                                           CH.sub.2 CO.sub.2 CH.sub.3                                                                 H    8                                               2949                                                                               OH    CH.sub.3                                                                           CH.sub.2 CONH.sub.2                                                                        H    8                                               2950                                                                               OH    CH.sub.3                                                                           CH.sub.2 CH.sub.2 Cl                                                                       H    8                                               2951                                                                               OH    CH.sub.3                                                                           CN          H    8                                               2952                                                                               OH    CH.sub.3                                                                           CHNNH.sub.2 H    8                                               2953                                                                               OH    CH.sub.3                                                                           CH.sub.2 NHOH                                                                              H    8                                               2954                                                                               OH    CH.sub.3                                                                           CH.sub.2 NHNH.sub.2                                                                        H    8                                               2955                                                                               OH    CH.sub.3                                                                           CH.sub.2 CN H    8                                               2956                                                                               OH    CH.sub.3                                                                           CH.sub.2 CHNOH                                                                             H    8                                               2957                                                                               OH    CH.sub.3                                                                           CH.sub.2 CHNNH.sub.2                                                                       H    8                                               2958                                                                               OH    CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHOH                                                                     H    8                                               2959                                                                               OH    CH.sub.3                                                                           CH.sub.2 CH.sub.2 NHNH.sub.2                                                               H    8                                               2960                                                                               OH    CH.sub.3                                                                           CONHOH      H    8                                               2961                                                                               OH    CH.sub.3                                                                           CHCHCHO     H    8                                               2962                                                                               OH    CH.sub.3                                                                           CHCHCOCH.sub.3                                                                             H    8                                               2963                                                                               OH    CH.sub.3                                                                           CHCHCH.sub.2 Cl                                                                            H    8                                               2964                                                                               OH    CH.sub.3                                                                           CH.sub.2 CHOHCH.sub.2 OH                                                                   H    8                                               2965                                                                               OH    CH.sub.3                                                                            ##STR54##  H    8                                               2966                                                                               O     CH.sub.3                                                                           CH.sub.3    H    8                                               2967                                                                               O     CH.sub.3                                                                           H           H    8                                               2968                                                                               O     CH.sub.3                                                                           CHO         H    8                                               2969                                                                               O     CH.sub.3                                                                           CH.sub.2 OH H    8                                               2970                                                                               O     CH.sub.3                                                                           CO.sub.2 H  H    8                                               2971                                                                                O    H   CH.sub.3    H    8                                               2972                                                                               O     H   H           H    8                                               2973                                                                               O     H   CHO         H    8                                               2974                                                                               O     H   CH.sub.2 OH H    8                                               2975                                                                               O     H   CO.sub.2 H  H    8                                               2976                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    H    8                                               2977                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           H    8                                               2978                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH H    8                                               2979                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  H    8                                               2980                                                                               OCH.sub.3                                                                            H   CH.sub.3    H    8                                               2981                                                                               OCH.sub.3                                                                            H   H           H    8                                               2982                                                                               OCH.sub.3                                                                            H   CHO         H    8                                               2983                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH H    8                                               2984                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  H    8                                               2985                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    H    8                                               2986                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           H    8                                               2987                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         H    8                                               2988                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH H    8                                               2989                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  H    8                                               2990                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    H    8                                               2991                                                                               OCOCH.sub.3                                                                          H   H           H    8                                               2992                                                                               OCOCH.sub.3                                                                          H   CHO         H    8                                               2993                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH H    8                                               2994                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  H    8                                               2995                                                                               OH    CH.sub.3                                                                           CH.sub.3    H    7                                               2996                                                                               OH    CH.sub.3                                                                           H           H    7                                               2997                                                                               OH    CH.sub.3                                                                           CHO         H    7                                               2998                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH H    7                                               2999                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  H    7                                               3000                                                                               OH    H   CH.sub.3    H    7                                               3001                                                                               OH    H   H           H    7                                               3002                                                                               OH    H   CHO         H    7                                               3003                                                                               OH    H   CH.sub.2 OH H    7                                               3004                                                                               OH    H   CO.sub.2 H  H    7                                               3005                                                                               O     CH.sub.3                                                                           CH.sub.3    H    7                                               3006                                                                               O     CH.sub.3                                                                           H           H    7                                               3007                                                                               O     CH.sub.3                                                                           CHO         H    7                                               3008                                                                               O     CH.sub.3                                                                           CH.sub.2 OH H    7                                               3009                                                                               O     CH.sub.3                                                                           CO.sub.2 H  H    7                                               3010                                                                               O     H   CH.sub.3    H    7                                               3011                                                                               O     H   H           H    7                                               3012                                                                               O     H   CHO         H    7                                               3013                                                                               O     H   CH.sub.2 OH H    7                                               3014                                                                               O     H   CO.sub.2 H  H    7                                               3015                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    H    7                                               3016                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           H    7                                               3017                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         H    7                                               3018                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH H    7                                               3019                                                                               OCH.sub.3                                                                            CH.sub. 3                                                                          CO.sub.2    H    7                                               3020                                                                               OCH.sub.3                                                                            H   CH.sub.3    H    7                                               3021                                                                               OCH.sub.3                                                                            H   H           H    7                                               3022                                                                               OCH.sub.3                                                                            H   CHO         H    7                                               3023                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH H    7                                               3024                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  H    7                                               3025                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    H    7                                               3026                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           H    7                                               3027                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         H    7                                               3028                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH H    7                                               3029                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  H    7                                               3030                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    H    7                                               3031                                                                               OCOCH.sub.3                                                                          H   H           H    7                                               3032                                                                               OCOCH.sub.3                                                                          H   CHO         H    7                                               3033                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH H    7                                               3034                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  H    7                                               3035                                                                               OH    CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            8                                               3036                                                                               OH    CH.sub.3                                                                           H           CH.sub.3                                                                            8                                               3037                                                                               OH    CH.sub.3                                                                           CHO         CH.sub.3                                                                            8                                               3038                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            8                                               3039                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            8                                               3040                                                                               OH    H   CH.sub.3    CH.sub.3                                                                            8                                               3041                                                                               OH    H   H           CH.sub.3                                                                            8                                               3042                                                                               OH    H   CHO         CH.sub.3                                                                            8                                               3043                                                                               OH    H   CH.sub.2 OH CH.sub.3                                                                            8                                               3044                                                                               OH    H   CO.sub.2 H  CH.sub.3                                                                            8                                               3045                                                                               O     CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            8                                               3046                                                                               O     CH.sub.3                                                                           H           CH.sub.3                                                                            8                                               3047                                                                               O     CH.sub.3                                                                           CHO         CH.sub.3                                                                            8                                               3048                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            8                                               3049                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            8                                               3050                                                                               O     H   CH.sub.3    CH.sub.3                                                                            8                                               3051                                                                               O     H   H           CH.sub.3                                                                            8                                               3052                                                                               O     H   CHO         CH.sub.3                                                                            8                                               3053                                                                               O     H   CH.sub.2 OH CH.sub.3                                                                            8                                               3054                                                                               O     H   CO.sub.2 H  CH.sub.3                                                                            8                                               3055                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            8                                               3056                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CH.sub.3                                                                            8                                               3057                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         CH.sub.3                                                                            8                                               3058                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            8                                               3059                                                                               OCH.sub.3                                                                            CO.sub.3 H      CH.sub.3                                                                            8                                               3060                                                                               OCH.sub.3                                                                            H   CH.sub.3    CH.sub.3                                                                            8                                               3061                                                                               OCH.sub.3                                                                            H   H           CH.sub.3                                                                            8                                               3062                                                                               OCH.sub.3                                                                            H   CHO         CH.sub.3                                                                            8                                               3063                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CH.sub.3                                                                            8                                               3064                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CH.sub.3                                                                            8                                               3065                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            8                                               3066                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CH.sub.3                                                                            8                                               3067                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CH.sub.3                                                                            8                                               3068                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            8                                               3069                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            8                                               3070                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CH.sub.3                                                                            8                                               3071                                                                               OCOCH.sub.3                                                                          H   H           CH.sub.3                                                                            8                                               3072                                                                               OCOCH.sub.3                                                                          H   CHO         CH.sub.3                                                                            8                                               3073                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CH.sub.3                                                                            8                                               3074                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CH.sub.3                                                                            8                                               3075                                                                               OH    CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            7                                               3076                                                                               OH    CH.sub.3                                                                           H           CH.sub.3                                                                            7                                               3077                                                                               OH    CH.sub.3                                                                           CHO         CH.sub.3                                                                            7                                               3078                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            7                                               3079                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            7                                               3080                                                                               OH    H   CH.sub.3    CH.sub.3                                                                            7                                               3081                                                                               OH    H   H           CH.sub.3                                                                            7                                               3082                                                                               OH    H   CHO         CH.sub.3                                                                            7                                               3083                                                                               OH    H   CH.sub.2 OH CH.sub.3                                                                            7                                               3084                                                                               OH    H   CO.sub.2 H  CH.sub.3                                                                            7                                               3085                                                                               O     CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            7                                               3086                                                                               O     CH.sub.3                                                                           H           CH.sub.3                                                                            7                                               3087                                                                               O     CH.sub.3                                                                           CHO         CH.sub.3                                                                            7                                               3088                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            7                                               3089                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            7                                               3090                                                                               O     H   CH.sub.3    CH.sub.3                                                                            7                                               3091                                                                               O     H   H           CH.sub.3                                                                            7                                               3092                                                                               O     H   CHO         CH.sub.3                                                                            7                                               3093                                                                               O     H   CH.sub.2 OH CH.sub.3                                                                            7                                               3094                                                                               O     H   CO.sub.2 H  CH.sub.3                                                                            7                                               3095                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            7                                               3096                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CH.sub.3                                                                            7                                               3097                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         CH.sub.3                                                                            7                                               3098                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            7                                               3099                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            7                                               3100                                                                               OCH.sub.3                                                                            H   CH.sub.3    CH.sub.3                                                                            7                                               3101                                                                               OCH.sub.3                                                                            H   H           CH.sub.3                                                                            7                                               3102                                                                               OCH.sub.3                                                                            H   CHO         CH.sub.3                                                                            7                                               3103                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CH.sub.3                                                                            7                                               3104                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CH.sub.3                                                                            7                                               3105                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                            7                                               3106                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CH.sub.3                                                                            7                                               3107                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CH.sub. 3                                                                           7                                               3108                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                            7                                               3109                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                            7                                               3110                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CH.sub.3                                                                            7                                               3111                                                                               OCOCH.sub.3                                                                          H   H           CH.sub.3                                                                            7                                               3112                                                                               OCOCH.sub.3                                                                          H   CHO         CH.sub.3                                                                            7                                               3113                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CH.sub.3                                                                            7                                               3114                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CH.sub.3                                                                            7                                               3115                                                                               OH    CH.sub.3                                                                           CH.sub.3    CHO  8                                               3116                                                                               OH    CH.sub.3                                                                           H           CHO  8                                               3117                                                                               OH    CH.sub.3                                                                           CH.sub.3    CHO  8                                               3118                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CHO  8                                               3119                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CHO  8                                               3120                                                                               OH    H   CH.sub.3    CHO  8                                               3121                                                                               OH    H   H           CHO  8                                               3122                                                                               OH    H   CHO         CHO  8                                               3123                                                                               OH    H   CH.sub.2 OH CHO  8                                               3124                                                                               OH    H   CO.sub.2 H  CHO  8                                               3125                                                                               O     CH.sub.3                                                                           CH.sub.3    CHO  8                                               3126                                                                               O     CH.sub.3                                                                           H           CHO  8                                               3127                                                                               O     CH.sub.3                                                                           CHO         CHO  8                                               3128                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CHO  8                                               3129                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CHO  8                                               3130                                                                               O     H   CH.sub.3    CHO  8                                               3131                                                                                O    H   H           CHO  8                                               3132                                                                               O     H   CHO         CHO  8                                               3133                                                                               O     H   CH.sub.2 OH CHO  8                                               3134                                                                               O     H   CO.sub.2 H  CHO  8                                               3135                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CHO  8                                               3136                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CHO  8                                               3137                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         CHO  8                                               3138                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CHO  8                                               3139                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CHO  8                                               3140                                                                               OCH.sub.3                                                                            H   CH.sub.3    CHO  8                                               3141                                                                               OCH.sub.3                                                                            H   H           CHO  8                                               3142                                                                               OCH.sub.3                                                                            H   CHO         CHO  8                                               3143                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CHO  8                                               3144                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CHO  8                                               3145                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CHO  8                                               3146                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CHO  8                                               3147                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CHO  8                                               3148                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CHO  8                                               3149                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CHO  8                                               3150                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CHO  8                                               3151                                                                               OCOCH.sub.3                                                                          H   H           CHO  8                                               3152                                                                               OCOCH.sub.3                                                                          H   CHO         CHO  8                                               3153                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CHO  8                                               3154                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CHO  8                                               3155                                                                               OH    CH.sub.3                                                                           CH.sub.3    CHO  7                                               3156                                                                               OH    CH.sub.3                                                                           H           CHO  7                                               3157                                                                               OH    CH.sub.3                                                                           CHO         CHO  7                                               3158                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CHO  7                                               3159                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CHO  7                                               3160                                                                               OH    H   CH.sub.3    CHO  7                                               3161                                                                               OH    H   H           CHO  7                                               3162                                                                               OH    H   CHO         CHO  7                                               3163                                                                               OH    H   CH.sub.2 OH CHO  7                                               3164                                                                               OH    H   CO.sub.2 H  CHO  7                                               3165                                                                               O     CH.sub.3                                                                           CH.sub.3    CHO  7                                               3166                                                                               O     CH.sub.3                                                                           H           CHO  7                                               3167                                                                               O     CH.sub.3                                                                           CHO         CHO  7                                               3168                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CHO  7                                               3169                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CHO  7                                               3170                                                                               O     H   CH.sub.3    CHO  7                                               3171                                                                               O     H   H           CHO  7                                               3172                                                                               O     H   CHO         CHO  7                                               3173                                                                               O     H   CH.sub.2 OH CHO  7                                               3174                                                                               O     H   CO.sub.2 H  CHO  7                                               3175                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CHO  7                                               3176                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CHO  7                                               3177                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         CHO  7                                               3178                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CHO  7                                               3179                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CHO  7                                               3180                                                                               OCH.sub.3                                                                            H   CH.sub.3    CHO  7                                               3181                                                                               OCH.sub.3                                                                            H   H           CHO  7                                               3182                                                                               OCH.sub.3                                                                            H   CHO         CHO  7                                               3183                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CHO  7                                               3184                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CHO  7                                               3185                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CHO  7                                               3186                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CHO  7                                               3187                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CHO  7                                               3188                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CHO  7                                               3189                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CHO  7                                               3190                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CHO  7                                               3191                                                                               OCOCH.sub.3                                                                          H   H           CHO  7                                               3192                                                                               OCOCH.sub.3                                                                          H   CHO         CHO  7                                               3193                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CHO  7                                               3194                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CHO  7                                               3195                                                                               OH    CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          8                                               3196                                                                               OH    C.sub.3                                                                            H           COCH.sub.3                                                                          8                                               3197                                                                               OH    CH.sub.3                                                                           CHO         COCH.sub.3                                                                          8                                               3198                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          8                                               3199                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  COCH.sub.3                                                                          8                                               3200                                                                               OH    H   CH.sub.3    COCH.sub.3                                                                          8                                               3201                                                                               OH    H   H           COCH.sub.3                                                                          8                                               3202                                                                               OH    H   CHO         COCH.sub.3                                                                          8                                               3203                                                                               OH    H   CH.sub.2 OH COCH.sub.3                                                                          8                                               3204                                                                               OH    H   CO.sub.2 H  COCH.sub.3                                                                          8                                               3205                                                                               O     CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          8                                               3206                                                                               O     CH.sub.3                                                                           H           COCH.sub.3                                                                          8                                               3207                                                                               O     CH.sub.3                                                                           CHO         COCH.sub.3                                                                          8                                               3208                                                                               O     CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          8                                               3209                                                                               O     CH.sub.3                                                                           CO.sub.2 OH COCH.sub.3                                                                          8                                               3210                                                                               O     H   CH.sub.3    COCH.sub.3                                                                          8                                               3211                                                                               O     H   H           COCH.sub.3                                                                          8                                               3212                                                                               O     H   CHO         COCH.sub.3                                                                          8                                               3213                                                                               O     H   CH.sub.2 OH COCH.sub.3                                                                          8                                               3214                                                                               O     H   CO.sub.2 H  COCH.sub.3                                                                          8                                               3215                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          8                                               3216                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           COCH.sub.3                                                                          8                                               3217                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         COCH.sub.3                                                                          8                                               3218                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          8                                               3219                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  COCH.sub.3                                                                          8                                               3220                                                                               OCH.sub.3                                                                            H   CH.sub.3    COCH.sub.3                                                                          8                                               3221                                                                               OCH.sub.3                                                                            H   H           COCH.sub.3                                                                          8                                               3222                                                                               OCH.sub.3                                                                            H   CHO         COCH.sub.3                                                                          8                                               3223                                                                               OCH.sub.3                                                                            H   CHO         COCH.sub.3                                                                          8                                               3224                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  COCH.sub.3                                                                          8                                               3225                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           COCH.sub.3  COCH.sub.3                                                                          8                                               3226                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           COCH.sub.3                                                                          8                                               3227                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         COCH.sub.3                                                                          8                                               3228                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          8                                               3229                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  COCH.sub.3                                                                          8                                               3230                                                                               OCOCH.sub.3                                                                          H   H           COCH.sub.3                                                                          8                                               3231                                                                               OCOCH.sub.3                                                                          H   CHO         COCH.sub.3                                                                          8                                               3232                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH COCH.sub.3                                                                          8                                               3233                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH COCH.sub.3                                                                          8                                               3234                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  COCH.sub.3                                                                          8                                               3235                                                                               OH    CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          7                                               3236                                                                               OH    CH.sub.3                                                                           H           COCH.sub.3                                                                          7                                               3237                                                                               OH    CH.sub.3                                                                           CHO         COCH.sub.3                                                                          7                                               3228                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          7                                               3239                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  COCH.sub.3                                                                          7                                               3240                                                                               OH    H   CH.sub.3    COCH.sub.3                                                                          7                                               3241                                                                               OH    H   H           COCH.sub.3                                                                          7                                               3242                                                                               OH    H   CHO         COCH.sub.3                                                                          7                                               3243                                                                               OH    H   CH.sub.2 OH COCH.sub.3                                                                          7                                               3244                                                                               OH    H   CO.sub.2 H  COCH.sub.3                                                                          7                                               3245                                                                               O     CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          7                                               3246                                                                               O     CH.sub.3                                                                           H           COCH.sub.3                                                                          7                                               3247                                                                               O     CH.sub.3                                                                           CHO         COCH.sub.3                                                                          7                                               3248                                                                               O     CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          7                                               3249                                                                               O     CH.sub.3                                                                           CO.sub.2 H  COCH.sub.3                                                                          7                                               3250                                                                               O     H   CH.sub.3    COCH.sub.3                                                                          7                                               3251                                                                               O     H   H           COCH.sub.3                                                                          7                                               3252                                                                               O     H   CHO         COCH.sub.3                                                                          7                                               3253                                                                               O     H   CH.sub.2 OH COCH.sub.3                                                                          7                                               3254                                                                               O     H   CO.sub.2 H  COCH.sub.3                                                                          7                                               3255                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          7                                               3256                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           COCH.sub.3                                                                          7                                               3257                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         COCH.sub.3                                                                          7                                               3258                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          7                                               3259                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  COCH.sub.3                                                                          7                                               3260                                                                               OCH.sub.3                                                                            H   CH.sub.3    COCH.sub.3                                                                          7                                               3261                                                                               OCH.sub.3                                                                            H   H           COCH.sub.3                                                                          7                                               3262                                                                               OCH.sub.3                                                                            H   CHO         COCH.sub.3                                                                          7                                               3263                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH COCH.sub.3                                                                          7                                               3264                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  COCH.sub.3                                                                          7                                               3265                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    COCH.sub.3                                                                          7                                               3266                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           COCH.sub.3                                                                          7                                               3267                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         COCH.sub. 3                                                                         7                                               3268                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH COCH.sub.3                                                                          7                                               3269                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    COCH.sub.3                                                                          7                                               3270                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    COCH.sub.3                                                                          7                                               3271                                                                               OCOCH.sub.3                                                                          H   H           COCH.sub.3                                                                          7                                               3272                                                                               OCOCH.sub.3                                                                          H   CHO         COCH.sub.3                                                                          7                                               3273                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH COCH.sub.3                                                                          7                                               3274                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  COCH.sub.3                                                                          7                                               __________________________________________________________________________

                                      TABLE 13                                     __________________________________________________________________________      ##STR55##                                                                     No. R.sub.1                                                                              R.sub.2                                                                            R.sub.3     R.sub.4                                                                            D  No.                                                                               M.P.                                       __________________________________________________________________________     3275                                                                               OH    CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                3276                                                                               OH    CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                3277                                                                               OH    CH.sub.3                                                                           CHCH.sub.2  CH.sub.3                                                                           8                                                3278                                                                               OH    CH.sub.3                                                                           CHOHCH.sub.2 OH(R)                                                                         CH.sub.3                                                                           8                                                3279                                                                               OH    CH.sub.3                                                                           CHOHCH.sub.2 OH(S)                                                                         CH.sub.3                                                                           8                                                3280                                                                               OH    CH.sub.3                                                                           CHO         CH.sub.3                                                                           8                                                3281                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                3282                                                                               OH    CH.sub.3                                                                           CH.sub.2 H  CH.sub.3                                                                           8                                                3283                                                                               OH    CH.sub.3                                                                           CO.sub.2 H.sub.3                                                                           CH.sub.3                                                                           8                                                3284                                                                               OH    CH.sub.3                                                                           CHNOH       CH.sub.3                                                                           8                                                3285                                                                               OH    CH.sub.3                                                                           CHOHCH CH.sub.2(R)                                                                         CH.sub.3                                                                           8                                                3286                                                                               OH    CH.sub.3                                                                           CHOHCHCH.sub.2(S)                                                                          CH.sub.3                                                                           8                                                3287                                                                               OH    H   CH.sub.3    CH.sub.3                                                                           8                                                3288                                                                               OH    H   H           CH.sub.3                                                                           8                                                3289                                                                               OH    H   CHCH.sub.2  CH.sub.3                                                                           8                                                3290                                                                               OH    H   CHOHCH.sub.2 OH(R)                                                                         CH.sub.3                                                                           8                                                3291                                                                               OH    H   CHOHCH.sub.2 OH(S)                                                                         CH.sub.3                                                                           8                                                3292                                                                               OH    H   CHO         CH.sub.3                                                                           8                                                3293                                                                               OH    H   CH.sub.2 OH CH.sub.3                                                                           8                                                3294                                                                               OH    H   CO.sub.2 H  CH.sub.3                                                                           8                                                3295                                                                               OH    H   CO.sub.2 CH.sub.3                                                                          CH.sub.3                                                                           8                                                3296                                                                               OH    H   CHNOH       CH.sub.3                                                                           8                                                3297                                                                               OH    H   CHOHCHCH.sub.2(R)                                                                          CH.sub.3                                                                           8                                                3298                                                                               OH    H   CHOHCHCH.sub.2(S)                                                                          CH.sub.3                                                                           8                                                3299                                                                               O     CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                3300                                                                               O     CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                3301                                                                               O     CH.sub.3                                                                           CHO         CH.sub.3                                                                           8                                                3302                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                3303                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                3304                                                                               O     H   CH.sub.3    CH.sub.3                                                                           8                                                3305                                                                               O     H   H           CH.sub.3                                                                           8                                                3306                                                                               O     H   CHO         CH.sub.3                                                                           8                                                3307                                                                               O     H   CH.sub.2 OH CH.sub.3                                                                           8                                                3308                                                                               O     H   CO.sub.2 H  CH.sub.3                                                                           8                                                3309                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                3310                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                3311                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                3312                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                3313                                                                               OCH.sub.3                                                                            H   CH.sub.3    CH.sub.3                                                                           8                                                3314                                                                               OCH.sub.3                                                                            H   H           CH.sub.3                                                                           8                                                3315                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CH.sub.3                                                                           8                                                3317                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CH.sub.3                                                                           8                                                3318                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           8                                                3319                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CH.sub.3                                                                           8                                                3320                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CH.sub.3                                                                           8                                                3321                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           8                                                3322                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           8                                                3323                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CH.sub.3                                                                           8                                                3324                                                                               OCOCH.sub.3                                                                          H   H           CH.sub.3                                                                           8                                                3325                                                                               OCOCH.sub.3                                                                          H   CHO         CH.sub.3                                                                           8                                                3326                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CH.sub.3                                                                           8                                                3327                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CH.sub.3                                                                           8                                                3328                                                                               OH    CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                3329                                                                               OH    CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                3330                                                                               OH    CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                3331                                                                               OH    CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                3332                                                                               OH    CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                3333                                                                               OH    H   CH.sub.3    CH.sub.3                                                                           7                                                3334                                                                               OH    H   H           CH.sub.3                                                                           7                                                3335                                                                               OH    H   CHO         CH.sub.3                                                                           7                                                3336                                                                               OH    H   CH.sub.2 OH CH.sub.3                                                                           7                                                3337                                                                               OH    H   CO.sub.2 H  CH.sub.3                                                                           7                                                3338                                                                               O     CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                3339                                                                               O     CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                3340                                                                               O     CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                3341                                                                               O     CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                3342                                                                               O     CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                3343                                                                               O     H   CH.sub.3    CH.sub.3                                                                           7                                                3344                                                                               O     H   H           CH.sub.3                                                                           7                                                3345                                                                               O     H   CHO         CH.sub.3                                                                           7                                                3346                                                                               O     H   CH.sub.2 OH CH.sub.3                                                                           7                                                3347                                                                               O     H   CO.sub.2 H  CH.sub.3                                                                           7                                                3348                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                3349                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                3350                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                3351                                                                               OCH.sub. 3                                                                           CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                3352                                                                               OCH.sub.3                                                                            CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                3353                                                                               OCH.sub.3                                                                            H   CH.sub.3    CH.sub.3                                                                           7                                                3354                                                                               OCH.sub.3                                                                            H   H           CH.sub.3                                                                           7                                                3355                                                                               OCH.sub.3                                                                            H   CHO         CH.sub.3                                                                           7                                                3356                                                                               OCH.sub.3                                                                            H   CH.sub.2 OH CH.sub.3                                                                           7                                                3357                                                                               OCH.sub.3                                                                            H   CO.sub.2 H  CH.sub.3                                                                           7                                                3358                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.3    CH.sub.3                                                                           7                                                3359                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           H           CH.sub.3                                                                           7                                                3360                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CHO         CH.sub.3                                                                           7                                                3361                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CH.sub.2 OH CH.sub.3                                                                           7                                                3362                                                                               OCOCH.sub.3                                                                          CH.sub.3                                                                           CO.sub.2 H  CH.sub.3                                                                           7                                                3363                                                                               OCOCH.sub.3                                                                          H   CH.sub.3    CH.sub.3                                                                           7                                                3364                                                                               OCOCH.sub.3                                                                          H   H           CH.sub.3                                                                           7                                                3365                                                                               OCOCH.sub.3                                                                          H   CHO         CH.sub.3                                                                           7                                                3366                                                                               OCOCH.sub.3                                                                          H   CH.sub.2 OH CH.sub.3                                                                           7                                                3367                                                                               OCOCH.sub.3                                                                          H   CO.sub.2 H  CH.sub.3                                                                           7                                                __________________________________________________________________________      NOTE: When the Dring is piperidine or the Noxide thereof, the upper side       chain (R) is not the ergosterol side chain.                              

SYNTHETIC EXAMPLES

The following examples describe synthetic procedures employed in production of specific compounds within the scope of the present invention. Unless otherwise indicated, all percentages in the following Examples and in the General Procedures set forth above are by weight and all temperatures are reported in degrees Celsius (°C.). All parts for reaction and chromatography solvents were determined by volume. All proton NMR spectra are referenced to tetramethylsilane (TMS) at 0.00 ppm.

The following abbreviations are employed in the examples:

NMR: nuclear magnetic resonance spectroscopy

IR: infrared spectroscopy

MS: mass spectroscopy

HRMS: high resolution mass spectroscopy

EI: electron impact

CI: chemical ionization

EA: elemental analysis

m.p.: melting point

MPLC: medium pressure liquid chromatography

Rf: retention factor on silica gel thin layer chromatography

Particular intermediates or products are identified by reference to the numbered compounds in the general synthetic procedures summarized above. Physical data for various compounds produced by procedures substantially corresponding to the description contained in each example are provided following the individual examples.

EXAMPLE 1 Preparation of 15-Oxadihydrolanosterol (Compound 11a) A. Preparation of 4,4-dimethyl-3b-[(4-methoxybenzyl)oxyl-5a-cholesta-8,14-diene (Compound 2b)

To a stirred solution of sodium hydride (50% in oil, 23.2 g, washed with 3 portions of 50 ml of dry tetrahydrofuran) in dry tetrahydrofuran (800 ml) and anhydrous N,N-dimethylformamide (200 ml) at 0° was added 4,4-dimethyl-5a-cholesta-8,14-dien-3b-ol (Compound 2a) (40 g, 96.8 mmole) and the mixture was stirred for 10 min. 4-Methoxybenzyl chloride [16.8 ml, 193.6 mmole, prepared by the method described by Schriner, et al. J. Org. Chem., 10: 228 (1945)] was added and the mixture was stirred for 24 hr. at 70° under nitrogen atmosphere. After cooling to 5° water (80 ml) was added dropwise to the mixture and it was stirred for 5 min. It was poured into ether (1L) and the layers were separated and the organic phase was washed with water (3×300 ml).

The combined aqueous layers were extracted with additional diethyl ether (300 ml). The combined organic solutions were washed with brine, and dried over anhydrous magnesium sulfate and evaporated under reduced pressure to afford a crystalline solid residue.

Recrystallization from diethyl ether and methanol provided 42.5 g of purified Compound 2b. The mother liquor residue was column chromatographed on silica gel with elution by 1:9 ethyl acetate - hexane to give additional 8.2 g of Compound 2b (50.7 g total, 98% yield).

Physical Data (Compound 2b):

NMR (300 MHz, CDCl₃); delta 7.28 (d, J=8.7 Hz, 2H), 6.87 (d, J=8.7 Hz, 2H), 5.35 (br s, 1H), 4.60 (d, J=11.4 Hz, 1H), 4.37 (d, J=11.4 Hz, 1H), 3.80 (s, 3H), 2.92 (dd, J=3.6 Hz, 11.7 Hz, 1H), 2.40-1.00 (m, 24H), 1.04 (s, 3H), 0.99 (s, 3H), 0.93 (d, J=6.3 Hz, 3H), 0.87 (d, J=6.3 Hz, 6H), 0.86 (s, 3H), 0.80 (s, 3H);

IR (KBr): 2939, 2888, 2870, 1513, 1470, 1249, 1101, 1095 cm⁻¹.

B. Preparation of 4,4-dimethyl-3b-[(4-methoxybenzyl)oxy]-5a-cholest-8-ene-14a. 15a-diol (Compound 3b)

To a solution of the 8,14-diene (Compound 2b) (16 g, 30 mmole) and dry pyridine (24.4 ml, 300 mmole) in benzene (640 ml) at 0° was added a solution of osmium tetroxide (8 g, 31.4 mmole) in methylene chloride (160 ml) dropwise over a period of 1 hr.

The dark brown mixture was stirred for 2 hr. at room temperature.

At the end of this period hydrogen sulfide (Union Carbide Corp., Linde Division, Danbury, Conn. 06817) was bubbled through the solution for about 20 min. and the black precipitates that formed were filtered off through Celite (Manville Products Corp. Denver, Colo.).

The filtrate was evaporated under reduced pressure to afford a brown solid residue (17.5 g) of the diol (Compound 3b). This material was routinely used for further transformations without purification.

An analytical sample of Compound 3b was obtained in the following manner:

A solution of the compound in benzene was filtered through a plug of silica gel (Kieselgel 60, EM Science, 111 Woodcrest Rd., Cherry Hill, NJ 08034-0395) with elution by 2:8 ethyl acetate - hexane and the solvents were evaporated under reduced pressure to give a white crystalline solid. This was recrystallized from ethyl acetate and hexane to give a chromatographically homogeneous sample of Compound 3b.

Physical Data (Compound 3b):

m.p.=124°-126.5° (decomposed); NMR (300 MHz, CDCl₃): delta 7.28 (d, J=8.7 Hz, 2H), 6.87 (d, J=8.7 Hz, 1H), 4.66 (d, J=11.4 Hz, 1H), 4.37 (d, J=11.4 Hz, 1H), 2.45 (d, J=9.9 Hz, 1H), 2.35-0.80 (m, 26H), 1.02 (s, 3H), 0.97 (s, 3H), 0.86 (d, J=6.3 Hz, 6H), 0.86 (d, J=6.6 Hz, 3H), 0.85 (s, 3H), 0.69 (s, 3H); IR (KBr): 3406, 2949, 2869, 2841, 1615, 1514, 1465, 1376, 1360, 1346, 1245, 1117, 1031 cm-1; HRMS for C₃₇ H₅₆ O₃ (M-H₂ O): Calcd. 548.4229; found 548.4252.

C. Preparation of 4,4-Dimethyl-3b-[(4-methoxybenzyl)ozy]-15-oxo-5a-14,15-secocholest-8-en-14-one (Compound 4b)

To a stirred solution of the diol (Compound 3b) (30 mmole in dry benzene (880 ml, distilled from calcium hydride) in the dark was added lead tetraacetate (14 g, 31.5 mmole Aldrich, recrystallized from acetic acid) in small portions over a period of 1 hr. and the mixture was stirred at room temperature for 1 hr. under nitrogen atmosphere and in the dark. The mixture was filtered through Celite and the filter cake rinsed with benzene several times. Evaporation of the solvent under reduced pressure provided an oily residue (17.1 g) of crude keto-aldehyde (Compound 4b). The crude product was routinely used for further transformations without purification.

An analytical sample of Compound 4b was obtained by column chromatography on silica gel with elution by 1:9 ethyl acetate - hexane then 2:8 ethyl acetate - hexane.

Physical Data (Compound 4b):

NMR (300 MHz, CDCl₃): delta 9.57 (s, 1H), 7.28 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.4 Hz, 2H), 4.60 (d, J=11.4 Hz, 1H), 4.40 (d, J=11.4 Hz, 1H), 3.80 (s, 3H), 3.01 (dd, J=4 Hz, 11.7 Hz, 1H), 2.58-1.00 (m, 24H), 1.07 (s, 3H), 1.02 (s, 3H), 0.97 (s, 3H), 0.92 (d, J=6.9 Hz, 3H), 0.87 (s, 3H), 0.86 (d, J=6.6 Hz, 6H); IR (film): 2951, 2868, 2719, 1725, 1654, 1623, 1617, 1514, 1465, 1458, 1247, 1098, 1037, cm⁻¹ ; HRMS for C₃₆ H₅₆ O₄ (M+): Calcd. 564.4179; found 564.4209.

D. Preparation of 15,15-Dimethoxy-4,4-dimethyl-3b-[(4-methoxybenzyl)oxy]5a-14,15-secocoholest-8-en-14-one (Compound 5b)

To a solution of the keto-aldehyde (Compound 4b) (30 mmole) in methanol (600 ml) were added trimethyl orthoformate (Aldrich) (48 ml, 439 mmole) and camphorsulfonic acid (Aldrich) 3.2 g, 13.8 mmole) and the mixture was stirred at room temperature for 2 hr. under nitrogen atmosphere. At the end of the stirring saturated sodium bicarbonate solution (120 ml) was added and most of the methanol was evaporated under reduced pressure. The residue was extracted with diethyl ether (3×500 ml) and the combined extracts were washed with brine, dried over anhydrous magnesium sulfate, and evaporated to give an oil residue (18.12 g) of the crude keto-acetal (Compound 5b).

The crude material was normally used for the next reaction. For analytical purposes, Compound 5b was column chromatographed on silica gel with elution by 2:8 ethyl acetate - hexane affording a purified sample of the Compound 5b.

Physical Data (Compound 5b):

NMR (300 MHz, CDCl₃) delta 7.27 (d, J=8.4 Hz, 2H), 6.86 (d, J=8.4 Hz, 2H), 4.60 (d, J=11.4 Hz, 1H), 4.37 (d, J=11.4 Hz, 1H), 4.05 (t, J=6 Hz, 1H), 3.26 (s, 3H), 3.21 (s, 3H), 2.90 (dd, J=4 Hz, 12 Hz, 1H), 2.60 (dd, J=5 Hz, 17 Hz), 2.40-0.90 (m, 26H), 1.08 (s, 3H), 1.10 (s, 3H), 0.99 (d, J=6.5 Hz, 6H); IR (film): 2952, 2869, 1661, 1615, 1514, 1464, 1458, 1248, 1123, 1099, 1077 cm⁻¹ ; HRMS for C₃₇ H₅₄ O₃ : Calcd. 546.4073; found 546.4126.

E. Preparation of 15,15-Dimethoxy-3b-[(4-methoxybenzyl)oxy]-14,15-secolanost-8-en-14-ol (Compound 6b)

To a solution of the keto-acetal (Compound 5b) (30 mmole) in dry diethyl ether (600 ml) was added a solution of methyl magnesium bromide in diethyl ether (3 ml, Aldrich) 50 ml, 150 mmole) dropwise at 0° and the mixture was stirred at 30°-40° for 2 hr. After cooling it to 0°, hydrochloric acid (0.5 ml, 400 mmole) was added slowly and it was stirred for about 1 min. The product was extracted with diethyl ether (3×500 ml), and the combined extracts washed with water and brine and dried over anhydrous magnesium sulfate).

Evaporation of the solvent afforded an oily residue of the tricyclic alcohol (Compound 6b). The crude product was routinely used for next reaction without purification.

An analytical sample of the Compound 6b was obtained by column chromatography on silica gel with elution by 2:8 ethyl acetate - hexane.

Physical Data (Compound 6b):

NMR (300 MHz, CDCl₃): delta 7.29 (d, J=8.4 Hz, 2H), 6.88 (d, J=8.4 Hz, 2H), 4.61 (d, J=11.4 Hz, 1H), 4.38 (d, J=11.4 Hz, 1H), 4.21 (dd, J=2.7 Hz, 9 Hz, 1H), 3.81 (s, 3H), 3.49 (s, 3H), 3.48 (s, 3H), 2.95 (dd, J=3.9 Hz, 11.7 Hz, 1H), 2.35 (dd, J=5.4 Hz, 18 Hz, 1H), 2.20-0.90 (m, 24H), 1.19 (s, 3H), 1.01 (s, 3H), 0.98 (s, 3H), 0.93 (d, J=6.9 Hz, 3H), 0.90 (s, 3H), 0.86 (d, J=6.3 Hz, 6H), 0.86 (s, 3H); HRMS for C₃₈ H₅₆ O₂ (M-2CH₃ OH-H₂ O): Calcd. 544.4280; found 544.4258.

F. Preparation of 3b-[(4-Methoxybenzyl)oxy]-14a-oxa-D-homo-lanost-8-en-15-ol (Compound 7b)

A solution of the tricyclic alcohol (Compound 6b) (30 mmole) in methylene chloride (160 ml) and 80% aqueous acetic acid (600 ml) was stirred at room temperature for 2 days and the solvents were evaporated under reduced pressure to give an oily residue of the cyclic hemiacetal (Compound 7b) and the cyclic acetal (Compound 7c). Compound 7b was separated from Compound 7c by column chromatography on silica gel with elution by 15:85 ethyl acetate - hexane followed by 3:7 ethyl acetate - hexane to afford 3.5 g of the Compound 7c (Rf=0.48, 2:8 ethyl acetate - hexane) and 11.6 g of the Compound 7b (Rf=0.23, 2:8 ethyl acetate - hexane) as oils.

The compound 7c was dissolved in methylene chloride (55 ml) 80% aqueous acetic acid (160 ml) and 1M hydrochloric acid (1 ml) and the solution was stirred at room temperature for 1 day. It was worked up and purified as described above to provide an additional 1.9 g of Compound 7b (total 13.5 g, 77.5% overall yield from Compound 3b) and 1.2 g of Compound 7c (6.7% overall yield from Compound 3b).

Physical Data (Compound 7b):

NMR (300 MHz, CDCl₃) delta 7.28 (d, J=8.7 Hz, 2H), 6.87 (d, J=8.7 Hz, 2H), 4.60 (d, J=11.5 Hz, 1H), 4.52 (t, J=7.5 Hz, 1H), 4.37 (d, J=11.5 Hz, 1H), 3.80 (s, 3H), 2.93 (dd, J=4.2 Hz, 11.7 Hz, 1H) 2.32 (dd, J=4 Hz, 11 Hz, 1H), 1.95-0.90 (m, 24H), 1.17 (s, 3H), 0.99 (s, 3H), 087 (d, J=6.6 Hz, 6H), 0.85 (s, 3H); HRMS for C₃₈ H₅₆ O₂ : Calcd. 544.4280; found 544.4197.

G. Preparation of 3b-[4-Methoxybenzyl)oxy]-14a-oxa-D-homo-lanosta-8,15-diene (Compound 8b)

To a stirred solution of the cyclic hemiacetal (Compound 7b) (13.5 g, 23.2 mmole) and anhydrous triethylamine (Aldrich) (33 ml, 232 mmole, distilled from calcium hydride) in dry methylene chloride (310 ml, distilled from phosphorous pentoxide) at 0° was added methanesulfonyl chloride (Aldrich) (5.43 ml, 69.6 mmole, filtered freshly through basic alumina) dropwise over a period of 5 min. and the mixture was stirred at 0° to 20° for 1 hr. under nitrogen atmosphere. The reaction mixture was poured into diethyl ether (1L) and the solution was washed with water, saturated sodium bicarbonate solution, water and brine. After drying over anhydrous magnesium sulfate the solvents were evaporated under the reduced pressure to give an oily residue of the glycal (Compound 8b). This crude material was normally used for next reaction without purification.

The analytical sample was prepared by column chromatography on silica gel with elution by 1:9 ethyl acetate - hexane to afford a purified sample of Compound 8b.

Physical Data (Compound 8b):

NMR (300 MHz, CDCl₃): delta 7.28 (d, J=8 Hz, 2H), 6.88 (d, J=8 Hz, 2H), 6.21 (dd, J=2.5 Hz, 6 Hz, 1H), 4.61 (d, J=11.5 Hz, 1H), 4.52 (dd, J=1.2 Hz, 6.3 Hz, 1H), 4.38 (d, J=11.5 Hz, 1H), 3.81 (s, 3H), 2.94 (dd, J=4 Hz, 11 Hz, 1H), 2.30-0.90 (m, 22H), 1.23 (s, 3H), 1.01 (s, 3H), 0.98 (s, 3H), 0.87 (d, J=7 Hz, 6H), 0.87 (s, 3H), 0.85 (s, 3H); HRMS for C₃₈ H₅₆ O₂ (M-H₂ O): Calcd. 544.4280; found 544.4281.

H. Preparation of 3b-[4-Methoxybenzyl)oxy]-14a-oxa-D-homo-lanost-8-ene-15,16-diol (Compound 9b)

To a stirred solution of the glycal (Compound 8b) (23.2 mmole) and pyridine (18.8 ml, 232 mmole) in benzene (600 ml) at 0° was added a solution of osmium tetroxide (6 g, 23.6 mmole) in methylene chloride (120 ml) over a period of 10 min. and the dark brown solution was stirred at room temperature for 1 hr. At the end of the stirring hydrogen sulfide gas was bubbled through the solution for about 15 min. and the resulting black precipitates were removed by filtration through Celite. The filter cake was rinsed with ethyl acetate several times and the filtrate was evaporated under reduced pressure to give a dark brown oily residue of the diol (Compound 9b) as a mixture of diastereomers.

Due to the complexity and instability of the product, analysis was carried out after the next transformation.

Physical Data (Compound 9b):

NMR (300 MHz, CDCl₃): delta 7.29 (d, J=8 Hz, 2H), 6.88 (d, J=8 Hz, 2H), 4.60 (d, J=12 Hz, 1H), 4.39 (d, J=12 Hz, 1H), 4.34 (d, J=7 Hz, 1H), 3.81 (s, 3H), 3.56 (dd, J=8.5 Hz, 11.5 Hz, 1H), 3.45 (brs, 1H), 2.95 (dd, J=4 Hz, 11 Hz, 1H), 2.35-0.90 (m, 23H), 1.18 (s, 3H), 1.12 (d, J=6 Hz, 3H), 0.97 (s, 3H), 0.89 (s, 3H), 0.88 (d, J=6 Hz, 6H), 0.83 (s, 3H).

I. Preparation of 16-Methoxy-3b-[(4-methoxybenzyl)oxyl-15-oxa-lanost-8-ene (Compound 10b)

To a solution of the diol (Compound 9b) (23.2 mmole) in diethyl ether (550 ml), methanol (550 ml) and water (140 ml) were added sodium metaperiodate (Aldrich) (33 g, 154 mmole) and camphorsulfonic acid (7 g, 30 mmole) and the mixture was stirred at room temperature for 20 hrs. After addition of saturated sodium bicarbonate (350 ml) the mixture was extracted with diethyl ether (3×500 ml) and the combined organic layers were washed with brine. The aqueous layers were re-extracted with diethyl ether (300 ml) and the extract was washed with brine.

The combined extracts were dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give a dark brown oily residue (13 g) of crude five-membered cyclic acetal (Compound 10b). Product of this purity was routinely used for next transformation without further purification.

The analytical sample of purified Compound 10b was obtained by a preparative thin layer chromatography on silica gel with elution by 1:9 ethyl acetate - hexane. Physical Data (Compound 10b):

NMR (300 MHz, CDCl₃): delta 7.29 (d, J=8.7 Hz, 2H), 6.88 (d, J=8.7 Hz, 2H), 4.59 (d, J=11.6 Hz, 1H), 4.53 (d, J=5.7 Hz, 1H), 4.38 (d, J=11.6 Hz, 1H), 3.81 (s, 3H), 3.36 (s, 3H), 2.98 (dd, J=4.2 Hz, 11.5 Hz, 1H), 2.20-0.80 (m, 22H), 1.13 (s, 3H), 0.98(s, 3H), 0.95 (d, J=5.4 Hz, 3H), 0.95 (s, 3H), 0.88 (s, 3H), 0.87 (d, J=6.3 Hz, 6H), 0.83 (s, 3H); IR (film): 2945, 2869, 1514, 1459, 1375, 1347, 1171, 1108, 1094, 1038, 1011 cm⁻¹ ; HRMS for C₃₇ H₅₆ O₃ : Calcd. 548.4230; found 548.4203.

J. Preparation of 15-Oxa-dihydrolanosterol (Compound 11a)

To a solution of Compound 10b (23.2 mmole) and triethylsilane (Aldrich) (16 ml, 0.1 mmole) in dry methylene chloride (420 ml) was added boron trifluoride etherate (Aldrich) (2.7 ml, 22 mmole) dropwise and the mixture was stirred at room temperature for 3 hr. under nitrogen atmosphere. The reaction was quenched by addition of saturated sodium bicarbonate and the products were extracted with methylene chloride (3×400 ml). The combined extracts were washed with water, dried over anhydrous magnesium sulfate, and evaporated under reduced pressure to give a dark brown oily residue. The oil was purified by column chromatography on silica gel with elution by 1:9 ethyl acetate - hexane followed by 2:8 ethyl acetate - hexane to provide 15-oxa-dihydrolanosterol (Compound 11a) (4.0 g, 40% overall yield from Compound 7b.

Physical Data (Compound 11a):

NMR (300 MHz, CDCl₃): delta 3.76 (t, J=9 Hz, 1H), 3.44 (dd, J=8.4 Hz, 9 Hz, 1H), 3.25 (dd, J=4.8 Hz, 11.4 Hz, 1H), 2.25-0.80 (m, 23H), 1.11 (s, 3H), 1.02 (s, 3H), 0.95 (d J=6.3 Hz, 3H) 0.95 (s, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.86 (s, 3H), 0.81 (s, 3H); IR (film): 3566, 2934, 1466, 1375, 1097, 1079, 1039, 1030 cm⁻¹ ; HRMS for C₂₉ H₅₀ O₂ (M+): Calcd. 430.3811; found 430.3772; for C₂₈ H₄₇ O₂ (M-CH₃) Calcd. 415.3576; found 415.3583.

EXAMPLE 2 Preparation of 4,4-Dimethyl-15-oxa-5a-cholest-8-en-3b-ol (Compound 17a) K. Preparation of 15,15-Dimethoxy-4,4-dimethyl-3b-[4-methoxybenzyl)oxyl-5a-14,15-Secoholest-8-en-14-ol (Compound 12b)

To a stirred solution of the keto-aldehyde (Compound 5b) (2.7 g, 4.42 mmole) in a dry methylene chloride (60 ml) was added a solution of diisobutyl aluminum hydride in hexane (Aldrich) 1 M/L, 8.84 ml, 8.84 mmole) dropwise at 0° and the mixture was stirred at 0° for 1 hr. at room temperature for 1 hr. The excess reagent was destroyed by dropwise addition of methanol (0.64 ml) at 0° and stirring for 10 min. Then water (1.1 ml) was added dropwise to the mixture and it was stirred at room temperature for 1 hr. The resulting precipitates were filtered off over Celite and the filtrate was evaporated under reduced pressure to give a white foamy residue of the secondary allylic alcohol (Compound 12b) as a mixture of diastereomers. The crude material was used in the next reaction without purification.

L. Preparation of 4,4-Dimethyl-3b-[(4-methoxybenzyl)oxy]-14a-oxa-D-homo-5a-cholest-8-en-15-ol (Compound 13b)

Following the method described for Compound 7b (Example 1-F) the secondary allylic alcohol (Compound 12b) (4.42 mmole) was transformed to the six-membered cyclic hemiacetal (Compound 13b) (0.81 g) and the corresponding cyclic acetal (Compound 13c) (1.34 g) as oils. The Compound 13c was resubjected to the reaction to afford an additional 0.69 g of Compound 13b (total 1.5, 60% overall yield from Compound 12b) after purification by column chromatography on silica gel with elution by 15:85 ethyl acetate - hexane.

Physical Data (Compound 13b):

NMR (300 MHz, CDCl₃) delta 7.28 (d, J=8.5 Hz, 2H), 6.86 (d, J=8.5 Hz, 2H), 4.69 (t, J=6 Hz, 1H), 4.59 (d, J=12 Hz, 1H), 4.37 (d, J=12 Hz, 1H), 3.80 (s, 3H), 2.92 (dd, J=4 Hz, 12 Hz, 1H), 2.20-0.90 (m, 26H), 0.99 (s, 6H), 0.97 (s, 3H), 0.93 (d, J=6.5 Hz, 3H), 0.88 (d, J=6.5 Hz, 6H), 0.86 (s, 3H); IR (film): 3413, 2952, 2930, 2870, 1654, 1636, 1465, 1457, 1376, 1365, 1087, 1065, 1036, 1013 cm⁻¹.

M. Preparation of 4,4-Dimethyl-3b-[(4-methoxylbenzyl)oxy]-14a-oxa-D-homo-5a-cholest-8,15-diene (Compound 14b)

Following the method described for Compound 8b (Example 1-G) the cyclic hemiacetal (Compound 13b) (0.15 g, 0.26 mmole) was transformed to the glycal (Compound 14b) in 87% yield. The crude product from the reaction was routinely used for next conversion without purification.

The analytical sample was obtained by filtering a concentrated solution of the crude Compound 14b in diethyl ether through a Florisil (Fischer Scientific) column with elution by diethyl ether.

N. Preparation of 4,4-Dimethyl-3b-[(4-methoxybenzyl)oxy]-14a-oxa-D-homo-5a-cholest-8-ene-15,16-diol (Compound 15b)

Following the method described for Compound 9b (Example 1-H) the glycal (Compound 14b) (0.126 g, 0.23 mmole) was transformed to the diol (Compound 15b). The crude product was used for next reaction without purification.

O. Preparation of 4,4-Dimethyl-16-methoxy-3b-[(4-methoxybenzyl)oxy]-15-oxa-5a-cholest-8-ene (Compound 16b)

Following the method described for Compound 10b (Example 1-I) the diol (Compound 15b) (0.23 mmole) was transformed to the five-membered cyclic acetal (Compound 16b). The crude product (0.139 mg) was used for the next reaction without purification.

P. Preparation of 4,4-Dimethyl-15-oxa-5a-cholest-8-en-3b-ol (Compound 17a)

Following the method described for Compound 11a (Example 1-J) the cyclic acetal (Compound 16b) (0.23 mmole) was converted to the 15-oxa steroid (Compound 17a) (0.04 g, 35.7% overall yield from Compound 13b).

Physical Data (Compound 17a):

NMR (300 MHz, CDCl₃); delta 3.96 (t, J=8.1 Hz, 1H), 3.72 (s, 1H), 3.65 (br s, 1H), 3.51 (dd, J=9.9 Hz), 8.1 Hz, 1H), 3.25 (dd, J=4.5 Hz, 11.1 Hz, 1H), 2.27 (m, 1H), 2.02-0.70 (m, 21H), 1.01 (s, 3H), 1.00 (s, 3H), 0.97 (s, 3H), 0.95 (d, J=6.6 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.81 (s, 3H); IR (film): 3448, 2951, 2932, 2869, 1465, 1458, 1376, 1365, 1091, 1032 cm⁻¹.

EXAMPLE 3 Preparation of 4,4-Dimethyl-15-oxa-14a-vinyl-5a-cholest-8-en-3b-ol (Compound 23a) Q. Preparation of 15,15-Dimethoxy-4-4-dimethyl-3b-[(4-methoxybenzyl)oxy]-14-vinyl-5a-14,15-secocholest-8-en-14-ol (Compound 18b)

To a stirred solution of the keto-acetal (Compound 5b) (8.2 g, 13.4 mmole) in dry tetrahydrofuran (270 ml) was added dropwise a solution of vinyl magnesium bromide in THF (1.6 M/L, Aldrich) (82 ml, 131.2 mmole) at 0° and the mixture was stirred at 70° for 2 hr. under nitrogen atmosphere. After cooling to 0° about 300 ml of 0.5M - hydrochloric acid was added to the solution and it was stirred for 0.5 min. The product was extracted with diethyl ether (3×300 ml) and the combined extracts were washed with water and brine. The ethereal solution was dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give the tricyclic alcohol (Compound 18b) as an oil. The crude product was routinely used for the next reaction without purification.

Physical Data (Compound 18b):

IR (film): 3450, 2952, 2870, 1514, 1466, 1247, 1121, 1099, 1078, 1053, 1043 cm⁻¹.

R. Preparation of 4,4-Dimethyl-3b-[(4-methoxybenzyl)oxy]-14a-oxa-14a-vinyl-D-homo-5a-cholest-8-en-15-ol (Compound 19b)

A solution of the tricyclic alcohol (Compound 18b) (13.4 mmole) in methylene chloride (80 ml) and 80% aqueous acetic acid (300 ml) containing 1M hydrochloric acid (0.5 ml) was stirred at room temperature for 20 hrs. The acid and water were evaporated off under reduced pressure to give an oily residue of the cyclic hemiacetal (Compound 19b) and the cyclic acetal (Compound 19c).

The two products were separated by column chromatography on silica gel with elution by 1:9 ethyl acetate - hexane followed by 2:8 ethyl acetate - hexane to afford 3.2 g of the compound 19c (Rf=0.32, 2:8 ethyl acetate-hexane) as oils.

The Compound 19c was dissolved in methylene chloride (40 ml) and 80% aqueous acetic acid (150 ml) and the solution was stirred at room temperature for 7 days. It was worked up and purified as described above to provide additional 2.31 g of Compound 19b (Total 5.81 g, 73% overall yield from Compound 18b).

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.28 (d, J=8.5 Hz, 2H), 6.87 (d, J=8.5 Hz, 2H), 5.74 (dd, J=10.8 Hz, 174. Hz, 1H), 5.05 (dd, J=1.8 Hz, 10.8 Hz, 17.4 Hz, 1H), 4.65 (d, J=2.1 Hz, 1H), 4.61 (d, J=11.4 Hz, 1H), 4.38 (d, J=11.4 Hz, 1H), 3.80 (s, 3H), 2.95 (dd, J=4.5 Hz, 10.5 Hz, 1H), 1.95-1.00 (m, 26H), 1.03 (s, 3H), 0.99 (s, 3H), 0.94 (d, J=6.9 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.84 (s, 3H), 0.82 (s, 3H); HRMS for C₃₉ H₅₈ O₃ (M-H₂ O): Calcd. 574.4386; found 574.4316.

S. Preparation of 4,4-Dimethyl-3b-[(4-methoxybenzyl)oxy]-14a-oxa-14a-vinyl-D-homo-5a-cholesta-8,15-diene (Compound 20b)

By the method described for Compound 8b (Example 1-G) the cyclic hemiacetal (Compound 19b) (2.65 g, 4.46 mmole) was transformed to the glycal (Compound 20b) (2.412 g, 94% yield) as a foamy solid. The crude product was normally used for next reaction without purification. Analytical sample was obtained by filtering a concentrated solution of the crude product in diethyl ether through a short Florisil column with elution by diethyl ether.

T. Preparation of 4,4-Dimethyl-3b-[(4-methoxybenzyl)oxy]-14a-oxa-14a-vinyl-D-homo-5a-cholest-8-ene-15,16-diol (Compound 21b)

By the method described for Compound 9b (Example 1-H) the glycal (Compound 20b) (2.412 g, 4.19 mmole) was converted to the diol (Compound 21b) (2.31 g, 90.5% yield) as an oil. The crude product was routinely used for next reaction without purification.

U. Preparation of 4,4-Dimethyl-16-methoxy-3b-[(4-methoxybenzyl)oxy]-15-oxa-14a-vinyl-5a-cholest-8-ene (Compound 22b)

By the method described for Compound 10b (Example 1-I) the diol (Compound 21b) (2.31 g, 3.79 mmole) was transformed to five-membered cyclic acetal (Compound 22b) (2.125 g, 94.6% yield) as a foamy solid. The crude product was used for the next reaction without purification.

V. Preparation of 4,4-Dimethyl-15-oxa-14a-vinyl-5a-cholest-8-en-3b-ol (Compound 23a)

To a stirred solution of the five-membered cyclic acetal (Compound 22b) (1.17 g, 2.64 mmole) and triethylsilane (1.6 ml, 10 mmole) in dry methylene chloride (50 ml) at -30° was added boron trifluoride etherate (0.2 ml, 1.63 mmole) dropwise and the mixture was stirred at -30° to 20° for 2 hr. The reaction was quenched by addition of saturated sodium bicarbonate (20 ml) and the products were extracted with diethyl ether (2×100 ml). The ether extracts were washed with water and brine, dried over anhydrous magnesium sulfate, and evaporated under reduced pressure to give an oily residue. It was purified by column chromatography on silica gel with elution by 15:85 ethyl acetate-hexane to give the 15-oxa-sterol (Compound 23a) (0.71 g, 81% yield) as a foamy solid.

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.73 (dd, J=10.8 Hz, 17.4 Hz, 1H), 5.12 (dd, J=1.8 Hz, 10.8 Hz, 1H), 5.00 (dd, J=1.8 Hz, 17.4 Hz, 1H), 3.88 (t, J=8.7 Hz, 1H), 3.55 (t, J=9 Hz, 1H), 3.26 (dd, J=4.8 Hz, 11.7 Hz, 1H), 2.07-0.80 (m, 23H), 1.01 (s, 6H), 0.95 (d, J=67 Hz, 3H), 0.86 (d, J=6.3 Hz, 6H), 0.81 (s, 3H), 0.78 (s, 3H); IR (film): 2933, 2868, 1512, 1467, 1375, 1095, 1040, 1029, 1033 cm⁻¹ ; HRMS for C₃₀ H₅₀ O₂ (M+): Calcd. 442.3811; found 442.3806.

EXAMPLE 4 Preparation of 3b-Acetoxy-4,4-dimethyl-15-oxa-14a-vinyl-5a-cholest-8-ene (Compound 23c)

A solution of the 15-oxa-sterol (Compound 23a) (2g, 4.52 mmole) acetic anhydride (Fischer Scientific) (2 ml, 21.2 mmole) and dimethylaminopyridine (Aldrich) (0.1 g, 0.82 mmole) in anhydrous pyridine (Aldrich) (20 ml) was stirred at room temperature for 18 hr. under nitrogen atmosphere. After addition of methanol (5 ml) the mixture was evaporated under reduced pressure, and the residue was partitioned between water and diethyl ether. The organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give an oily residue. It was column chromatographed on silica gel with elution by 5:95 ethyl acetate - hexane followed by 1:9 ethyl acetate - hexane to afford the 14-vinyl-15-oxa-sterol acetate (Compound 23c) (1.78 g, 81% yield).

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.72 (dd, J=10.8 Hz, 15.9 Hz, 1H), 5.12 (dd, J=1.8 Hz, 1H), 5.00 (dd, J=1.8 Hz, 15.9 Hz, 1H) 4.52 (dd, J=4.8 Hz, 1H), 3.87 (t, J=8.7 Hz, 1H), 3.55 (t, J=8.7 Hz, 1H), 2.06 (s, 3H), 2.06-0.80 (m, 22H), 1.03 (s, 3H), 0.94 (d, J=6.3 Hz, 3H), 0.89 (s, 3H), 0.88 (s, 3H), 0.87 (d, J=6 Hz, 6H), 0.78 (s, 3H).

EXAMPLE 5 Preparation of both Diasteroemers of 3b-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol (Compounds 24c and 25c)

To a solution of the 14-vinyl-15-oxa-sterol acetate (Compound 23c) (1.78 g, 3.67 mmole) was added osmium tetroxide (1 g, 3.94 mmole) and the resulting dark brown solution was stirred at room temperature for 2 days. At the end of the stirring hydrogen sulfide gas was bubbled through the solution and the black precipitates were removed by filtration over Celite. After washing the filter cake with ethyl acetate several times the filtrate and the washings were evaporated to give a black oily residue. It was purified by column chromatography on silica gel with elution by 3:7 ethyl acetate - hexane to afford 0.25 g of unreacted starting Compound 23C, 0.54 g of Compound 24c (Rf=0.20, 3:7 ethyl acetate - hexane) and 0.19 g of Compound 25c (Rf=0.16, 3:7 ethyl acetate - hexane) in 44.6% combined corrected yield.

Physical Data (Compound 24c):

IR (Film): 3451, 2951, 2870, 1733, 1650, 1642, 1632, 1467, 1366, 1246, 1100, 1028 cm⁻¹ ; HRMS for C₃₀ H₄₉ O₃ (M-CHOHCH₂ OH): Calcd. 457.3681;; found 457.3640.

Physical Data (Compound 25c):

HRMS for C₃₀ H₄₉ O₃ (M-CHOHCH₂ OH): Calcd. 457.3681; found 457.3659.

EXAMPLE 6 Preparation of 3b-Acetoxy-15-oxa-32-oxolanost-8-ene (Compound 26c)

To a solution of the diol (Compound 24c) (492 mg, 0.95 mmole) in ethanol (34 ml) at 0° was added a solution of sodium periodate (664 mg, 2.85 mmole) in 8.5 ml of water dropwise and the mixture was stirred at 0° for 30 min. It was extracted with diethyl ether (150 ml) and the organic layer was washed with brine. After drying over anhydrous magnesium sulfate the solvents were evaporated under reduced pressure to give an oily residue of the aldehyde (Compound 26c) (460 mg, ca. 100% yield).

Physical Data:

NMR (300 MHz, CDCl₃): delta 9.56 (s, 1H), 4.47 (dd, J=4.5 Hz, 11.4 Hz, 1H), 3.98 (t, J=8.4 Hz, 1H), 3.66 (t, J=8.7 Hz, 1H), 2.15-0.90 (m, 22H), 2.02 (s, 3H), 1.02 (s, 3H), 1.02 (s, 3H), 0.91 (d, J=6.3 Hz, 3H), 0.88 (s, 3H), 0.84 (brs, 9H), 0.82 (s, 3H); IR (film): 2949, 2871, 2798, 2689, 1733, 1471, 1466, 1457, 1374, 1366, 1246, 1027 cm⁻¹.

EXAMPLE 7 Preparation of 15-Oxa 32-oxodihydrolanosterol (Compound 26a)

To a solution of the aldehyde-acetate (Compound 26c) (30 mg, 0.062 mmole) ethanol (0.7 ml) was added 3M potassium hydroxide (41 1, 0.124 mmole) and the mixture was stirred at room temperature for 20 hr. After addition of diethyl ether (15 ml) the organic solution was washed with water and brine and dried over anhydrous magnesium sulfate. Evaporation of the solvent under reduced pressure afforded a foamy solid residue of chromatographically purified free hydroxy compound (Compound 26a) (27.5 mg, 100% yield).

Physical Data:

NMR (300 MHz, CDCl₃): delta 9.59 (s, 1H), 4.03 (t, J=8.4 Hz, 1H), 3.70 (dd, J=8.1 Hz, 9.6 Hz, 1H), 3.26 (dd, J=4.5 Hz, 11.4 Hz, 1H), 2.20-0.90 (m, 24H), 1.04 (s, 3H), 1.01 (s, 3H), 0.95 (d, J=6.6 Hz, 3H), 0.92 (s, 3H), 0.86 (d, J=6.3 Hz, 6H), 0.81 (s, 3H); IR (film): 3446, 2946, 2933, 2870, 2691, 1731, 1468, 1383, 1378, 1365, 1064, 1042, 1027 cm⁻¹ ; HRMS for C₂₈ H₄₇ O₂ (M-CHO): Calcd. 415.3576; found 415.3600.

EXAMPLE 8 Preparation of 15-Oxa-lanost-8-ene-3b,32-diol (Compound 27)

To a stirred solution of the aldehyde (Compound 26a) (15 mg, 0.034 mmole) in ethanol (1 ml) at 0° was added sodium borohydride (Fischer Scientific) (10 mg, 0.26 mmole) and the mixture was stirred at the same temperature for 1 hr. The excess sodium borohydride was destroyed by adding several drops of saturated ammonium chloride solution and the product was extracted with diethyl ether. The organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated to give the diol (Compound 27) (ca. 100% yield) as a white crystalline solid.

Physical Data:

HRMS for C₂₈ H₄₇ O₂ (M-CH₂ OH): Calcd. 415.3576; found 415.3562.

EXAMPLE 9 Preparation of both Diastereomers of 15-Oxa-32-vinyl-lanost-8-ene-3b,32-diol (Compounds 28 and 29)

To a stirred solution of the aldehyde (Compound 26c) (23 mg, 0.052 mmole) in dry tetrahydrofuran (1 ml) was added 1M vinyl magnesium bromide in tetrahydrofuran (0.52 ml, 0.52 mmole) dropwise and the mixture was stirred at 70° for 0.5 hr. under nitrogen atmosphere. After cooling to 0° about 2 ml of 0.5M hydrochloric acid was added slowly and the mixture was extracted with diethyl ether. The ether layer was washed with saturated sodium bicarbonate, water and brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give an oily residue of Compounds 28 and 29 (1.4:1 ratio, determined by GC, ca. 100% yield).

EXAMPLE 10 Preparation of 3b-Hydroxy-15-oxa-lanost-8-en-32-aldoxime (Compound 30)

A solution of the aldehyde (Compound 26a) (17 mg, 0.038 mmole) and hydroxylamine hydrochloride (Aldrich) (20 mg, 0.29 mmole) in pyridine (0.5 ml) was stirred at 80° for 7 hr. After addition of diethyl ether the solution was washed with water and brine, dried over anhydrous magnesium sulfate and evaporated to give an oily residue. The crude product was purified by preparative thin layer chromatography to obtain purified oxime (Compound 30) as a foamy solid (ca. 100% yield).

Physical Data:

NMR (300 MHz CDCl₃): delta 3.93 (t J=8.1 Hz 1H) 3 62 (t J=8.1 Hz 1H) 3.26 (dd J=4.8 Hz, 11.4 Hz 1H) 2.10-0.70 (m 25H) 1.01 (s 22/33H), 0.98 (s, 3H), 0.95 (d, J=6.3 Hz 3H) 0.89 (s 3H) 0.86 (d J=6.6 Hz 6H) 0.81 (s, 3H) IR (film): 3336, 2932, 2870, 1467, 1458, 1383, 1377, 1266, 1040, 1028, 924 737 cm⁻¹.

EXAMPLE 11 Preparation of 14a-Oxa-D-homodihydrolanosterol (Compound 31) W. Preparation of 4-Dimethyl-5a-cholest-8-ene-3b-,14a,15a-triol (Compound 3a)

By the method described for Compound 3b (Example 1-B) the 8,14-diene (Compound 2a) (4.64 g, 11.24 mmole) was transformed to triol (Compound 3a). The crude product was filtered through a plug of silica gel with elution by 4:6 ethyl acetate-hexane followed by 7:3 ethyl acetate-hexane and crystallized from diethyl ether and hexane to afford purified Compound 3a as white short needles (4.18 g, 83.3% yield), m.p.=133°-134° (dec.)

Physical Data:

NMR NMR (300 MHz, CDCl₃ -D₂₀ (5%)): delta 4.11 (dd, J=5 Hz, 9 Hz, 1 Hz), 3.22 (dd, J=5 Hz, 11 Hz, 1H), 2.33 (m, 1H), 2.26 (brm, 1H), 2.09 (brm, 2H), 2.00-1.05 (m, 20H), 1.01 (d, J=3 Hz, 6H), 0.87 (s, 3H), 0.86 (d, J=8 Hz, 3H), 0.85 (s, 3H), 0.82 (s, 3H), 0.69 (s, 3H); IR (film): 3422 (bs, OH), 2950 (s), 1652 (s), 1465 (m), 1036 (m) cm⁻¹ ; EA for C₂₉ H₅₀ O₃ : Calcd. C 77.97%, H 11.28%; found C 78.05%, H 11.19%.

X. Preparation of 4,4-Dimethyl-3b-hydroxy-15-oxo-5a-14,15-Secocholest-8 -en-14-on (Compound 4a)

By the method described for Compound 4b (Example 1-C) the triol (Compound 3a) (1 g, 2.24 mmole) was transformed to keto-aldehyde (Compound 4a) (0.97 g, 97.4% yield) the crude material was normally used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.93 (t, J=8.1 Hz, 1H), 3.63 (t, J=8.1 Hz, 1H), 3.26 (dd, J=4.8 Hz, 11.4 Hz, 1H), 2.10-0.70 (m, 25H), 1.01 (s, 3H), 0.98 (s, 3H), 0.95 (d, J=6.3 Hz, 3H), 0.89 (s, 3H), 0.88 (d, J=6.6 Hz, 6H), 0.81 (s, 3H); IR (film): 3336, 2932, 2870, 1467, 1458, 1383, 1377, 1266, 1040, 1028, 924, 737 cm⁻¹.

Y. Preparation of 15,15-Dimethoxy-4,4-dimethyl-3b-hydroxy-15-oxo-5a-14,15-secocholest-8-en-14-one (Compound 5a)

By the method described for Compound 5b (Example 1d) the keto-aldehyde (Compound 4a) (0.97 g, 2.18 mmole) was transformed to keto-acetal (Compound 5a) (1.09 g, ca. 100% yield) as a foamy solid. The crude product was normally used for the next reaction without purification. An analytical sample of Compound 5a was obtained by column chromatography on silica gel by elution with 3:7 ethyl acetate - hexane.

Physical Data:

NMR (300 MHz, CDCl₃): delta 4.06 (t, J=5.8 Hz, 1H), 3.26 (s, 3H), 3.26-3.27 (m, 1H), 3.22 (s, 3H), 2.62 (dd, J=6 Hz, 17 Hz, 1H), 2.35-0.90 (m, 25H), 1.07 (s, 3H), 1.02 (s, 3H), 0.98 (d, J=7.2 Hz, 3H), 0.95 (s, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.84 (s, 3H); IR (film): 3490, 2952, 2870, 1659, 1622, 1642, 1434, 1373, 1123, 1076, 1061 cm⁻¹ ; HRMS for C₂₉ H₄₆ O₂ (M-2CH₃ OH): Calcd. 426.2498; found 426.3415.

Z. Preparation of 15,15-Dimethoxy-14,15-Secolanost-8-ene-3b,14-diol (Compound 6a)

By the method described for Compound 6b (Example 1-E) the keto-acetal (Compound 5a) (200 mg, 0.41 mmole) was transformed to tricyclic alcohol (Compound 6a) (210 mg, ca. 100% yield) as an oil. The crude material was routinely used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃) delta 4.05 (t, J=6 Hz, 1H), 3.27-3.20 (m, 1H), 3.26 (s, 3H), 3.22 (s, 3H), 2.61 (dd, J=5.1 Hz, 17.7 Hz, 1H), 2.50-0.80 (m, 25H), 1.07 (s, 3H), 1.02 (s, 3H), 1.02 (s, 3H), 0.98 (d, J=6.9 Hz, 3H), 0.95 (s, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.85 (s, 3H), 0.84 (s, 3H).

AA. Preparation of 14a-Oxa-D-homo-lanost-8-ene-3b,15-diol (Compound 7a)

A solution of the tricyclic alcohol (Compound 6a) (0.41 mmole) in methylene chloride (2 ml) and 80% aqueous acetic acid (10 ml) was stirred at room temperature for 1.5 hr. and the solvents were evaporated off under reduced pressure to give an oily residue. The residue was dissolved in diethyl ether (20 ml) and washed with saturated sodium bicarbonate and brine.

After drying over anhydrous sodium sulfate the ether solution was evaporated under reduced pressure to give an oily residue that was column chromatographed on silica gel. Elution with 25:75 ethyl acetate-hexane afforded 117 mg of cyclic hemiacetal (Compound 7a) (28% overall yield from Compound 6a) as an oil.

AB. Preparation of 14a-Oxa-D-homo dihydrolanosterol (Compound 31)

To a stirred solution of the cyclic hemiacetal (Compound 7a) (34 mg. 0.073 mmole) in dry methylene chloride (1.5 ml) at -30° were added triethylsilane (35L, 0.22 mmole) and 2 drops of boron trifluoride etherate and the mixture was stirred at -30° to 8° for 45 min. under nitrogen atmosphere. After addition of saturated sodium bicarbonate (3 ml) the reaction mixture was extracted with diethyl ether (2×15 ml). The combined extracts were washed with brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure to give an oily residue of Compound 312 (30 mg, 92.4%) yield). It was purified by MPLC on silica gel with elution by 1L (ethyl acetate - hexane to give a purified sample as a white foamy solid.

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.67 (dd, J=2.7 Hz, 1H), 3.31-3.25 (m, 2H), 2.37 (dd, J=5.5 Hz, 18 Hz, 1H), 2.20-0.909 (m, 24H), 1.12 (s, 3H), 1.04 (s, 3H), 0.98 (s, 3H), 0.94 (d, J=7.2 Hz, 3H), 0.92 (s, 3H), 0.88 (d, J=6.6 Hz, 6H), 0.83 (s, 3H); HRMS for C₃ OH₅₂ O₂ (M+), Calcd. 444.3967, found 444.3942; for C₂₉ H₄₉ O₂ (M-CH₃), Calcd. 429.3733, found 429.3717.

EXAMPLE 12 Preparation of 4,4-dimethyl-14a-Oxa-D-homo-5a-cholest-8-en-3b-ol (Compound 32) AC Preparation of 15,15-Dimethyl-4,4-dimethyl-5a-14,15-Secocholest-8-ene-3b,14-diol (Compound 12)

By the method described for Compound 12b (Example 2-K) the keto-acetal (Compound 5a) (121 mg, 0.25 mmole) was transformed to tricyclic secondary alcohol (Compound 12a) as an oil. The crude product was used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.30 (s, 1H), 4.41 (dd, J=3 Hz, 9 Hz, 1H), 3.91 (d, J=4.2 Hz, 1H), 3.45 (s, 3H), 3.36 (s, 3H), 3.36 (s, 3H), 3.21 (m, 1H), 2.15-0.95 (m, 25H), 0.99 (s, 6H), 0.92 (d, J=6.6 Hz, 3H), 0.87 (d, J=6.6 Hz, 6H), 0.81 (s, 3H), 0.61 (s, 3H); HRMS for C₃₀ H₅₂ O₃ (M-CH₃ OH): Calcd. 460.3916; found 460.3891.

AD. Preparation of 4,4-Dimethyl-14a-oxa-D-homo-5a-cholest-8-ene-3b,15-diol (Compound 13a)

By the method described for Compound 7a (Example 11-AA) with exception of reaction time (4 hr.) the secondary alcohol (Compound 12a) (0.25 mmole) was transformed to the six-membered cyclic hemiacetal (Compound 13a) (70 mg, 62.7% overall yield from Compound 5a) as an oil.

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.30 (s, 1H), 4.72 (dd, J=3.3 Hz, 8.7 Hz, 1H), 3.79 (brs, 1H), 3.25 (dd, J=4.5 Hz, 11.1 Hz, 1H), 2.20-0.080 (m, 25H), 1.01 (s, 3H), 0.98 (s, 3H), 0.96 (s, 3H), 0.93 (d, J-6.9 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.81 (s, 3H);

AE. Preparation of 4,4-Dimethyl-14a-Oxa-D-homo-5a-cholest-8-en-3b-ol (Compound 32)

To a stirred solution of the cyclic hemiacetal (Compound 13a) (31.8 mg, 0.071 mmole) and triethylsilane (34 1, 0.21 mmole) in dry acetonitrile (1.5 ml) and dry methylene chloride (0.5 ml) at -15° was added a drop of boron trifluoride etherate and the mixture was stirred at -15° to -10° for 15 min. After addition of saturated sodium bicarbonate it was extracted with diethyl ether. The ether extract was washed with brine, dried over anhydrous sodium sulfate and evaporated to give an oily residue of Compound 32. It was purified by preparative thin layer chromatography on silica gel plate with elution by 3:7 ethyl acetate - hexane to afford 12 mg of purified sample (39.2% yield) as a white foamy solid.

EXAMPLE 13 Preparation of 4,4-Dimethyl-14a-oxa-14-a oxa-14a-vinyl-D-homo-5a-cholest-8-en-3b-ol (Compound 33) AF. Preparation of 15,15-Dimethoxy-4,4-dimethyl-14-vinyl-5a-14,15-secocholest-8-ene-3b,14-diol (Compound 18a)

By the method described for Compound 18b the keto-acetal (Compound 5a) (230 mg, 0.47 mmole) was transformed to a tricyclic allylic alcohol (Compound 18a) as an oil. The crude material was normally used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.80 (dd, J=9.9 Hz, 17.7 Hz, 1H), 5.08 (d, J=9.9 Hz, 1H), 5.05 (d, J=17.1 Hz, 1H), 4.50 (dd, J=2.7 Hz, 9 Hz, 1H), 4.20 (s, 1H), 3.42 (s, 3H), 3.28 (s, 3H), 3.24 (dd, J=4.8 Hz, 12 Hz, 1H), 2.47 (dd, J=10.8 Hz, 14.4 Hz, 1H), 2.15-0.90 (m, 24H), 1.03 (s, 3H), 1.01 (s, 3H), 0.94 (s, 3H), 0.93 (d, J=4.5 Hz, 3H), 0.87 (d, J=6.3 Hz, 6H), 0.82 (s, 3H); IR (film): 3455, 2954, 2871, 1466, 1375, 1122, 1067, 1045 cm⁻¹.

AG. Preparation of 4,4-Dimethyl-14a-oxa-14a-vinyl-d-homo-5a-cholest-8-ene-3b,15-diol (Compound 19a)

By the method described for Compound 7a (Example 11-AA) the allylic alcohol (Compound 18a) (0.47 mmole) was transformed to six-membered cyclic hemiacetal (Compound 19a) (140 mg, 63% overall yield from Compound 5a).

AH. Preparation of 4,4-Dimethyl-14a-oxa-14a-vinyl-D-homo-5a-cholest-8-en-3b-ol (Compound 33)

By the method described for Compound 31 (Example 11-AB) the cyclic hemiacetal (Compound 19a) (73.8 mg. 0.16 mmole) was transformed to compound 33 (70 mg, 95.8% yield). Purified sample of Compound 33 as a white foamy solid was obtained by column chromatography on silica gel with elution by 1:9 ethyl acetate - hexane.

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.71 (dd, J=10.8 Hz, 17.4 Hz, 1H), 5.07 (dd, J=1.5 Hz, 10.8 Hz, 1H), 4.96 (dd, J=1.5 Hz, 17.4 Hz, 1H), 3.74 (dd, J=3.3 Hz, 10.5 Hz, 1H), 3.34 (t, J=11.1 Hz, 1H), 3.28 (dd, J=3.9 Hz, 11 1 Hz, 1H), 2.10-0.80 (m, 25H), 1.04 (s, 3H), 1.03 (s, 3H), 0.94 (d, J=6.6 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.83 (s, 3H), 0.82 (s, 3H); IR (film): 3438, 2947, 2933, 2868, 1635, 1466, 1399, 1377, 1265, 1096, 1040, 1027, 1003, 922, 736 cm⁻¹ ; HRMS for C₃₁ H₅₂ O₂ (M+): Calcd. 456.3968; found 456.3955.

EXAMPLE 14 Preparation of both Diastereomers of 32-hydroxy-14a-oxa-lanost-8-ene-3b,32-diol (Compounds 34 and 35)

To a solution of the 14-vinyl-D-homo-oxasterol (Compound 33) (250 mg, 0.55 mmole) in anhydrous pyridine (10 ml) was added a 5% solution of osmium tetroxide in methylene chloride (3.4 ml, 0.66 mmole) and the mixture was stirred at room temperature for 7 days. At the end of that period, hydrogen sulfide gas was bubbled through the solution for about 5 min. and the resulting black precipitates were removed by filtration over Celite.

The filter cake was rinsed with ethyl acetate several times and the filtrate and washings were evaporated to give a black oily residue. It was column chromatographed on silica gel with elution by 6:4 ethyl acetate - hexane to afford 150 mg of the unreacted starting material (compound 33) and 90 mg (foamy solid) of the triols 34 and 35 as a mixture (83.8% corrected yield).

EXAMPLE 15 Preparation of 14a-Oxa-32-oxo-D-homo-dihydrolanosterol (Compound 36)

To a stirred solution of the diasteromeric mixture of triols (Compounds 34 and 35) (90 mg, 0.184 mmole) in ethanol (4 ml) was added a solution of sodium periodate (118 mg, 0.55 mmole) in water (1 ml) dropwise over a period of 3 min. The mixture was stirred at room temperature of 0.5 hr. and diethyl ether (30 ml) was added to the mixture. The ether solution was washed with water and brine, dried over anhydrous magnesium sulfate and evaporated to give an oily residue. It was purified by MPLC on silica gel with elution by 2:8 ethyl acetate-hexane to provide purified aldehyde (Compound 36) as a white foamy solid (80-90% yield).

Physical Data:

NMR (300 MHz, CDCl₃) delta 9.51 (s, 1H), 3.91 (dd, J=4.5H, 11.1 Hz, 1H), 3.35 (t, J-11.4 Hz, 1H), 3.27 (dd, J=4.5 Hz, 11.4 Hz, 1H), 2.04-0.80 (m, 25H), 1.05 (s, 3H), 1.02 (s, 3H), 0.94 (d, J=6.9 Hz, 3H), 0.92 (s, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.81 (s, 3H); IR (film): 3481, 2951, 2868, 2725, 1734, 1466, 1459, 1378, 1365, 1098, 1043, 1027, 1004, 733 cm⁻¹.

EXAMPLE 16 Preparation of 14a-Methyl-15-oxa-5a-cholest-8-en-3b-ol (Compound 47) AI. Preparation of 3b-[(4-Methoxybenzyl)oxy]5a-cholesta-8,14-diene (Compound 38b)

By the method described for the diene p-methoxybenzyl ether (Compound 2b) (Example 1-A) 5a-cholesta-8,14-dien-3b-ol (18.6 g, 48.4 mmole) was transformed to p-methoxybenzyl ether (Compound 38b) as white crystals (17.4 g, 71.2% yield), m.p.=109°-110° C.

Physical Data:

NMR (300 MHz, CDCl₃) delta 7.28 (d, 8.7 Hz, 2H), 6.82 (d, J=8.7 Hz, 2H), 5.36 (m, 1H), 4.52 (d, J=11 Hz, 1H), 4.47 (d, J=11 Hz, 1H), 3.80 (s, 3H), 3.35 (m, 1H), 2.40-0.80 (m, 26H), 0.99 (s, 3H), 0.94 (d, J=6.3 Hz, 3H), 0.87 (d, J=6.5 Hz, 6H), 0.81 (s, 3H); IR (KBr): 3932, 2868, 2835, 1613, 1513, 1465, 1457, 1243, 1086, 1071, 1041 cm⁻¹.

AJ. Preparation of 3b-[(4-Methoxybenzyl)oxyl]-5a-cholest-8-ene-14a,15a-diol (Compound 39)

By the method described for the diol (Compound 3b) (Example 1-b) the diene (Compound 38b) (3.8 g, 7.5 mmole) was transformed to the corresponding diol (Compound 39). The crude white solid product was normally used for next reaction without purification.

Physical Data:

NMR (300 MHz, C₆ D₆); delta 7.34 (d, J=8.2 Hz, 2H), 6.86 (d, J=8.2 Hz, 2H), 4.51 (d, J=12 Hz, 1H), 4.46 (d, J=12 Hz, 12H), 4.05 (dd, J=7.5 Hz, 17 Hz, 1H), 3.30 (s, 3H), 3.30 (m, 1H), 2.45-0.80 (m, 28H), 0.95 (d, J=6.5 Hz, 3H), 0.90 (d, J=6.6 Hz, 6H), 0.84 (s, 3H), 0.62 (s, 3H); IR (film): 3500, 2933, 2889, 1615, 1587, 1514, 1457, 1374, 1302, 1247, 1171, 1109, 1083, 1035 cm⁻¹ ; HRMS (EI) for C₃₅ H₅₂ O₃ (M-H₂ O), Calcd. 520.3917; found 520.3895.

AK. Preparation of 3b-[(4-Methoxybenzyl)oxy]-15-oxo-5a-14,15-secocholest-8-en-14-one (Compound 40)

By the method described for the keto-aldehyde (Compound 4b) (Example 1-C) the diol (Compound 39) (7.5 mmole) was transformed to the corresponding keto-aldehyde (Compound 40).

The crude oily product was used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 9.56 (s, 1H), 7.27 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.4 Hz, 2H), 4.52 (d, J=11.7 Hz, 1H), 4.47 (d, J=11.7 Hz, 1H), 3.80 (s, 3H), 3.41 (m, 1H), 2.57-0.90 (m, 26H), 1.02 (s, 3H), 0.97 (s, 3H), 0.91 (d, J=6.6 Hz, 3H), 0.87 (d, J=6.6 Hz, 6H); IR (film): 2950, 2934, 2869, 1725, 1655, 1615, 1513, 1442, 1375, 1301, 1248, 1103, 1077, 1037 cm⁻¹ ; HRMS for C₃₄ H₅₀ O₃ (M-CH₂ O): Calcd. 506.3760; found 506.3763.

AL. Preparation of 15,15-Dimethoxy-3b-[(4-methoxybenzyl)oxy]5a-14,15-secocholest-8-en-14-one (Compound 41)

By the method described for the keto-acetal (Compound 5b) (Example 1-D) the keto-aldehyde (Compound 40) (7.5 mmole) was transformed to the corresponding keto-acetal (Compound 41). The crude oily product was used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.26 (d, J-8.4 Hz, 2H), 6.87 (d, J=-8.4 Hz, 2H), 4.51 (d, J=11.4 Hz, 1H), 4.47 (d, J=11.4 Hz, 1H), 4.07 (t, J=6 Hz, 1H), 3.80 (s, 3H), 3.30 (m, 1H), 3.26 (s, 3H), 3.21 (s, 3H), 2.53 (brd, J=16.5 Hz, 1H), 2.40-1.00 (m, 25H), 1.02 (s, 3H), 0.98 (d, J=7.2 Hz, 3H), 0.96 (s, 3H), 0.86 (d, J=6.6 Hz, 6H); IR (film): 2934, 2867, 1661, 1654, 1617, 1513, 1465, 1438, 1248, 1078, 1058, 1039 cm⁻¹ ; HRMS (EI) for C₃₆ H₅₄ O₄ (M+--CH₃ OH), Calcd. 550.4022, found 550.4021.

AM. Preparation of 15,15-Dimethoxy-3b-[(4-methoxybenzyl)oxy]-14-methyl-14,15-secocholest-8-en-14-ol (Compound 42)

By the method described for the tricyclic alcohol (Compound 6b) (Example 1-E) the keto-acetal (Compound 41) (7.5 mmole) was transformed to the corresponding tricyclic alcohol (Compound 42). The crude oily product was used for next reaction without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.27 (d, J=8.7 Hz, 2H), 6.87 (d, J=8.7 Hz, 2H), 4.50 (brs, 1H), 4.52 (d, J=14.1 HZ, 1H), 4.49 (t, J=3 Hz, 1H), 4.46 (d, J=14.1 Hz, 1H), 3.80 (s, 3H), 3.49 (s, 6H), 3.35 (m, 1H), 2.30-0.90 (m, 26H), 1.19 (s, 3H), 0.92 (d, J=5.7 Hz, 3H), 0.90 (s, 3H), 0.86 (s, 3H), 0.86 (d, J=6.6 Hz, 6H); IR (film): 3464, 2933, 2869, 1514, 1465, 1457, 1120, 1063, 1052, 1040 cm⁻¹ ; HRMS (EI) for C₃₆ H₅₄ O₃ (M+2CH3OH), Calcd. 534.4073, found 534.4071.

AN. Preparation of 3b-[(4-Methoxybenzyl)oxy]-14a-methyl-14a-oxa-D-homo-5a-cholest-8-en-15-ol (Compound)

By the method described for the six-membered cyclic hemiacetal (Compound 7b) (Example 1-F) the tricyclic alcohol (Compound 42) (Example 1-F) the tricyclic alcohol (Compound 42) (7.5 mmole) was transformed to the corresponding cyclic hemiacetal (Compound 43a) and cyclic acetal (Compound 43b). The oily residue of the mixture was column chromatographed on silica gel with elution by 15:85 ethyl acetate - hexane followed by 3:7 ethyl acetate - hexane to afford 1.6 g of the cyclic hemiacetal (Compound 43a) and 1.19 g of the cyclic acetal (Compound 43b). The compound 43b was subjected to the reaction condition and stirred at room temperature for 4 days. It was worked up and purified as described above to provide additional 0.47 g of the compound 43a (Total 2.07 g, 50% overall yield from Compound 38b) and 0.6 g of the Compound 43b (14.1% overall yield from Compound 38b).

Physical Data:

NMR (300 MHz, CDCl₃) delta 7.27 (d, J=8.1 Hz, 2H), 6.87 (d, J=8.1 Hz, 2H), 4.53 (brs, 1H), 4.49 (brs, 1H), 3.80 (s, 3H), 3.34 (m, 1H), 2.23 (brd, J-17.1 Hz, 1H), 2.10-1.00 (m, 26H), 1.18 (s, 3H), 0.86 (d, J=6.3 Hz, 6H); HRMS for C₃₆ H₅₄ O₃ (M-H₂ O): Calcd. 534.4073; found 534.4114.

AO. Preparation of 3b-[(4-Methoxybenzyl)oxy]-14a-methyl-14a-oxa-D-homo-5a-cholesta-8,15-diene (Compound 44)

By the method described for the glycal (Compound 8b) (Example 1-G) the cyclic hemiacetal (43a) (2.07 g, 3.74 mmole) was transformed to the corresponding glycal (Compound 44). The crude oily product was used for the next reaction without purification.

Physical Data:

IR (film): 2950, 2931, 2866, 1660, 1514, 1467, 1248, 1171, 1093, 1072, 1039 cm⁻¹.

AP. Preparation of 3b-[(4-Methoxybenzyl)oxy]-14a-methyl-14a-oxa-D-homo-5a-cholest-8-ene-15,16-diol (Compound 45)

By the method described for the diol (Compound 9b) (Example 1-H) the glycal (Compound 44) (3.74 mmole) was transformed to the corresponding diol (Compound 45). The crude black oily product was used for next reaction without purification.

AQ. Preparation of 16-Methoxy-3b-[(4-methoxybenzyl)oxy]-14a-methyl-15-oxa-5a-cholest-8-ene (Compound 46)

By the method described for the 5-membered cyclic acetal (Compound 10b) the diol (Compound 45) (3.784 mmole) was transformed to the corresponding 5-membered cyclic acetal (Compound 46). The crude oily product was used for next reaction without purification. Analytical sample of purified Compound 46 was obtained by a preparative thin layer chromatography on silica gel with elution by 1:9 ethyl acetate - hexane.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.27 (d, J=8.5 Hz, 2H), 6.87 (d, J=8.5 Hz, 2H), 4.52 (d, J=5.4 Hz, 1H), 4.51 (d, J=12 Hz, 1H), 4.51 (d, J=12 Hz, 1H), 4.46 (d, J=12 Hz, 1H), 3.81 (s, 3H), 3.37 (m, 1H), 3.35 (s, 3H), 2.35 (s, 3H), 2.35-1.00 (m, 24H), 1.13 (s, 3H), 0.94 (d, J=6.6 Hz, 3H), 0.90 (s, 3H), 0.88 (s, 3H), 0.86 (d, J=6.6 Hz, 6H); IR (film): 3923, 3865, 1613, 1514, 1466, 1374, 1248, 1171, 1093, 1071, 1038, 1011 cm⁻¹ ; HRMS (EI) for C₃₅ H₅₂ O₃ (M-CH₃ OH): Calcd. 520.3916; found 520.3880.

AR. Preparation of 14a-Methyl-15-oxa-5a-cholest-8-en-3b-ol (Compound 47)

By the method described for 15-oxa-dihydrolanosterol (Compound 11a) (Example 1-J) the cyclic acetal (Compound 46) (3.74 mmole) was transformed to 15-oxasterol (Compound 47). The crude product was purified by MPLC on silica gel with elution by 2:8 ethyl acetate-hexane to provide 0.52 g of the purified compound as foamy solid (34.5% of overall yield from Compound 43a).

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.75 (t, J=8.4 Hz, 1H), 3.62 (m, 1H), 3.44 (t, J=8.7 Hz, 1H), 2.30 (s, 1H), 2.10-1.00 (m, 24H), 1.12 (s, 3H), 0.95 (d, J=6.3 Hz, 3H), 0.91 (s, 3H), 0.87 (s, 3H), 0.86 (d, J=6 Hz, 6H); IR (KBr): 3389, 2929, 2861, 1467, 1457, 1375, 1037 cm⁻¹ ; HRMS (EI) for C₂₆ H₄₆ O₂ (M+), Calcd. 402.3498, found 4092.3524.

EXAMPLE 18 Preparation of 4,4-Dimethyl-15-thia-5a-cholest-8-en-3b-ol (Compound 49)

Hydrogen sulfide gas was bubbled through a solution of 4,4-dimethyl-16-methoxy-3b-[(4-methoxybenzyl)oxy]-15-oxa-5a-cholest-8-ene (Compound 16b) (1.426 mmole, crude material, prepared by procedures M, N, and O from Compound 13b (0.81 g, 1.426 mmole) in 40 ml of dry methylene chloride at 0° for 120 min. Boron trifluoride etherate (2.5 ml) was added to the mixture and it was stirred at 0° for 0.5 hr. and at room temperature for 1.5 hr. under nitrogen atmosphere. At the end of the stirring it was cooled to -30° and triethylsilane (2.2 ml, 13.8 mmole) was added dropwise to the solution. The mixture was stirred at room temperature for 1.5 hr. under nitrogen atmosphere and saturated aqueous sodium bicarbonate solution (50 ml) was added to quench the reaction. It was extracted with diethyl ether twice and the combined extracts were washed with brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give a dark brown oily residue. It was purified by column chromatography on silica gel with elution by 15:85 ethyl acetate-hexane to afford purified Compound 49 (158 mg, 26% overall yield from Compound 13b).

Rf: 0.24, 2:8 ethyl acetate - hexane.

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.24 (dd, J=4.5 Hz, 11.1 Hz, 1H), 2.75 (t, J=8.4 Hz, 1H), 2.66 (dd, J=9.6 Hz, 11.7 Hz, 1H), 2.57 (m, 1H), 2.11-2.03 (m, 2H), 1.90-0.80 (m, 20H), 1.30 (s, 3H), 1.01 (s, 3H), 1.01 (d, J=6.6 Hz, 3H), 0.94 (s, 3H), 0.88 (s, 3H), 0.87 (d, J-6.3 Hz, 6H), 0.80 (s, 3H); IR (film): 3415, 2950, 2869, 1465, 1439, 1376, 1367, 1082, 1026, 1001, 736 cm⁻¹.

EXAMPLE 19 Preparation of 15-thia-dihydrolanosterol (Compound 50)

By the method described for 15-thiasterol (Compound 49) (Example 18) five-membered cyclic acetal (Compound 10b) (198 mg, 0.34 mmole) was transformed to 15-thia-dihydrolanosterol (Compound 50) (65.4 mg, 43% overall yield from Compound 7b).

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.24 (dd, J=4.8 Hz, 11 Hz, 3H), 3.23 (s, 1H), 2.85 (t, J=10.2 Hz, 1H), 2.77 (dd, J=7.2 Hz, 10.2 Hz, 1H), 2.20-0.80 (m, 23H), 0.99 (s, 3H), 0.95 (s, 3H), 0.88 (d, J=8.7 Hz, 3H), 0.87 (d, J=6.6 Hz, 6H), 0.81 (s, 3H); IR (film): 3443, 2953, 2932, 2869, 1465, 1457, 1382, 1375, 1366, 1089, 1034, 1016, 1004, 736 cm⁻¹.

EXAMPLE 20 Preparation of 4,4-Dimethyl-15-thia-14a-vinyl-5a-cholest-8-en-3b-ol (Compound 51)

By the method described for 15-thiasteroid (Compound 49) (Example 18) five-membered cyclic acetal (Compound 22b) (274 mg, 0.46 mmole) was transformed to 15-thia-14-vinyl-sterol (Compound 51) (57.3 mg, 27.2% overall yield from Compound 19b).

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.84 (dd, J=109.5 Hz, 1H), 5.12 (dd, J=1.5 Hz, 10.5 Hz, 1H), 4.94 (dd, J=1.5 Hz, 17.1 Hz, 1H), 3.26 (dd, J=4.8 Hz, 1H), 2.85 (dd, J=7.2 Hz, 9.6 Hz, 1H), 2.74 (dd, J=10.8 Hz, 11.7 Hz, 1H), 2.46 (m, 1H), 2.06 (dd, , J=3.9 Hz, 7.2 Hz, 114 Hz, 1H), 1.96-0.75 (m, 21H), 1.02 (s, 3H), 1.01 (s, 3H), 1.01 (d, J=6 Hz, 3H), 0.87 (d, J=6.6 Hz, 6H), 0.81 (s, 3H), 0.80 (s, 3H); IR (film): 3394, 2949, 2867, 1473, 1465, 1457, 1376, 1365, 1093, 1030, 1004, 918 cm⁻¹.

EXAMPLE 21 Preparation of sulfoxide (Compound 53)

To a stirred solution of 15-thia-dihydrolanosterol (Compound 50) (20 mg, 0.045 mmole) in ethanol (3 ml) was added a solution of sodium periodate (38 mg, 0.18 mmole) in water (1 ml) and the mixture was stirred at room temperature for 30 mins.

After addition of diethyl ether (ca. 10 ml) it was filtered to remove the precipitates and the filtrate was evaporated under reduced pressure to give an oily residue. It was purified by preparative thin layer chromatography on silica gel with elution by 5:95 methanol - methylene chloride to give 14 mg of purified sulfoxide (Compound 53) (67% yield).

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.74 (dd, J=7.2 Hz, 13.2 Hz, 1H), 3.22 (dd, J=4.8 Hz, 11.4 Hz, 1H), 2.49 (t, J=13.2 Hz, 1H), 2.36-0.80 (m, 23H), 1.34 (s, 3H), 1.01 (d, J=6 Hz, 3H), 1.01 (s, 3H), 0.98 (s, 3H), 0.87 (d, J=6.6 Hz, 6H), 0.81 (s, 3H); IR (film): 3394, 2950, 2932, 2868, 1457, 1437, 1384, 1376, 1364, 1015, 731 cm⁻¹.

EXAMPLE 22 Preparation of 4,4-Dimethyl-14a-thia-D-homo-5a-cholest-8-en-eb-ol (Compound 56)

To a stirred solution of the cyclic acetal (Compound 13d) (300 mg, 0.65 mmole) in dry methylene chloride (10 ml) at 0° was bubbled hydrogen sulfide to saturate the solution and boron trifluoride etherate (0.9 ml, 7.3 mmole) was added dropwise.

After stirring at room temperature for 1.5 hr. it was cooled to 0° and triethylsilane (1.4 ml, 8.76 mmole) was added. It was stirred at the same temperature for 2.5 hr. and saturated sodium carbonate (ca. 20 ml) was added to quench the reaction. The mixture was extracted with diethyl ether (2×30 ml) and the combined extracts were washed with water and brine, dried over anhydrous magnesium sulfate, and evaporated under reduced pressure to give a foamy solid residue. It was purified by column chromatography on silica gel with elution by 15:85 ethyl acetate-hexane to afford purified Compound 56 (172 mg, 59.2% yield) as a white foamy solid.

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.27 (dd, J=4.8 Hz, 11.4 Hz, 1H), 2.33-2.23 (m, 4H), 1.90-0.80 (m, 21H), 1.12 (s, 3H), 1.09 (s, 3H), 1.03 (s, 3H), 0.99 (s, 3H), 0.90 (d, J=6.9 Hz, 3H), 0.87 (d, J=6.6 Hz, 6H), 0.82 (s, 3H); IR (film): 3427, 2951, 2869, 2853, 1467, 1457, 1376, 1025, 1002, 734 cm⁻¹.

EXAMPLE 23 Preparation of 14a-thia-D-homo-dihydrolanosterol (Compound 57)

By the method described for Compound 56 (Example 22) the cyclic acetal (Compound 7d) (300 mg, 0.63 mmole) was transformed to six-membered cyclic sulfide (Compound 57) (129 mg, 44.3% yield) as a white foamy solid.

Physical Data:

NMR (300 MHz, CDCl₃) delta 3.26 (dd, J=4.8 Hz, 11.1 Hz, 1H), 2.75 (s, 1H), 2.50-2.25 (m, 3H), 2.05-0.90 (m, 24H), 1.13 (s, 3H), 1.01 (s, 3H), 0.99 (s, 3H), 0.89 (d, J=6.9 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.81 (s, 3H).

EXAMPLE 24 Preparation of 14-Aza-4,4-dimethyl-5a-cholesta-8,14-dien-3b-ol (Compound 66a) AS. Preparation of 4,4-dimethyl-3b-[(4-methoxybenzyl)oxy]-14-oxo-5a-14,15-secocholest-8-ene-15-carboxylic acid (Compound 63)

To a stirred solution of the enone aldehyde (Compound 4b) [15 mmole, crude material, prepared from Compound 2b (8 g, 15 mmole)] in tert-butanol (340 ml) and water (85 ml) were added sodium chlorite (Aldrich) (2.91 g, 30 mmole) and the mixture was stirred at room temperature for 1 hr. At the end of the stirring was added methylene chloride (500 ml) to the mixture and it was washed with water (2×150 ml). The combined aqueous layers were re-extracted with methylene chloride (200 ml) and washed with water once.

The methylene chloride extracts were dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give a solid residue of crude acid (Compound 63) in near quantitative yield. The crude material was routinely used for next transformation without purification. The analytical sample was obtained by recrystallization from ethyl acetate and hexane, m.p.=126°-126.5° C.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.29 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.4 Hz, 2H), 4.60 (d, J=11.4 Hz, 1H), 4.40 (d, J=11.4 Hz, 1H), 3.80 (s, 3H), 3.00 (dd, J=3.6 Hz, 11.4 Hz, 1H), 2.47 (dd, J=7 Hz, 17.5 Hz, 1H), 2.38-0.80 (m, 22H), 1.06 (s, 3H), 1.05 (s, 3H), 0.97 (s, 3H), 0.96 (d, J=6.6 Hz, 3H), 0.87 (s, 3H), 0.86 (d, J=6.9 Hz, 6H); IR (film): 3435, 2951, 2937, 2869, 1707, 1654, 1624, 1616, 1513, 1465, 1301, 1247, 1098 cm⁻¹ ; HRMS for C ₃₇ H₅₄ O₄ (M-H₂ O); Calcd. 562.4022, found 562.4054.

AT. Preparation of 4,4-dimethyl-3b-[(4-methoxybenzyl)oxy]-14-oxo-5a-14.15-secocholest-8-ene-15carboxylic acid azide (Compound 64)

To a solution of the carboxylic acid (Compound 63) (15 mmole) and N-methylmorpholine (4.96 ml, 45 mmole) in dry methylene chloride (270 ml) at 0° was added isobutyl chloroformate (2.92 ml, 22.5 mmole) dropwise over a period of 5 min. and the mixture was stirred at 0° for 1 hr. Then a solution of sodium azide (9.78 g, 75 mmole) and tetrabutylammonium bromide (1.1 g, 3.4 mmole) in water (90 ml) was added and the two phase mixture was stirred at 0° for 1.5 hrs. The methylene chloride layer was separated and the aqueous layer was extracted with methylene chloride (2×50 ml). The combined extracts were washed with water and brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give an oily residue of the crude acyl azide (Compound 64) (9.1 g, quantitative mass recovery). The crude product was normally used for next reaction without purification.

Physical Data:

IR (film): 3522, 2952, 2938, 2869, 2315, 1720, 1657, 1623, 1615, 1514, 1464, 1248, 1172, 1096 cm⁻¹.

AU. Preparation of 15-Aza-4.4-dimethyl-3b-[(4-methoxybenzyl)oxy]-15-methoxycarbonyl-5a-14,15-secocholest-8-en-14-one (Compound 65)

A solution of the acyl azide (Compound 64) (7 g, 11.6 mmole, crude material) in ethyl acetate (20 ml) and methanol (100 ml) was refluxed under nitrogen atmosphere for 5 hr. and the solvents were evaporated off.

The oily residue of the crude carbamate (Compound 65) was normally used for next reaction without purification. Analytical sample of purified Compound 65 was obtained by crystallization from diethyl ether and hexane, m p.=144°-144.5°.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.27 (d, J=8.4 Hz, 2H), 6.86 (d, J=8.4 Hz, 2H), 4.60 (dm J=11.4 Hz, 1H), 4.52 (t, J=6 Hz, 1H), 4.35 (d, J=11.4 Hz, 1H), 3.80 (s, 3H), 3.53 (s, 3H), 3.33 (dd, J=7.5 Hz, 13.5 Hz, 1H), 2.90 (dd, J=3.9 Hz, 11.4 Hz, 1H), 2.84 (m, 1H), 2.56 (dd, J=6 Hz, 18 Hz, 1H), 2.25-0.80 (m, 21H), 1.13 (d, J=6.6 Hz, 3H), 1.06 (s, 3H), 1.00 (s, 3H), 0.97 (s, 3H), 0.86 (d, J=6.6 Hz, 6H), 0.86 (s, 3H); IR (film): 3464, 3366, 2952, 2869, 1727, 1654, 1623, 1617, 1514, 14654, 1458, 1380, 1247, 1099, 1037 cm⁻¹ ; HRMS for C₃₈ H₅₉ NO₅ (M+): Calcd. 609.4393; found 609.4404.

AV. Preparation of 15-Aza-4,4-dimethyl-3b-[(4-methoxybenzyl)oxy]-5a-cholest-8-,14-diene (Compound 66b)

To a solution of the carbamate (Compound 65) (11.6 mmole) in dry tetrahydrofuran (150 ml) was added potassium trimethylsilanolate (12.8 g, 100 mmole) and the mixture was refluxed under nitrogen atmosphere for 2 hrs. After cooling to room temperature diethyl ether (200 ml) was added and the organic layer was washed with water and brine. The combined aqueous layers were re-extracted with diethyl ether and the extracts were washed with brine. The ether extracts were dried over anhydrous sodium sulfate and evaporated under reduced pressure to give a solid residue. It was purified by column chromatography on silica gel with elution by 2:8 ethyl acetate - hexane to give 4.5 g of purified cyclic imine (Compound 66b) as white solid (72.7% overall yield from Compound 2b). It was crystallized from methylene chloride and hexane to afford 3.6 g of crystalline product, m.p.=159°-160°.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.28 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.4 Hz, 2H), 4.61 (d, J=11.7 Hz, 1H), 4.39 (d, J=11.7 Hz, 1H), 3.93 (dd, J=6 Hz, 14.5 Hz, 1H), 3.81 (s, 3H), 3.34 (dd, J=9.3 Hz, 14.5 Hz, 1H), 2.93 (dd, J=3.9 Hz, 11.7 Hz, 1H), 2.40-0.78 (m, 22H), 1.09 (s, 3H), 1.01 (s, 3H), 0.91 (d, J=5.1 Hz, 3H), 0.88 (s, 3H), 0.87 (d, J=5.7 Hz, 6H), 0.86 (s, 3H); IR (KBr): 2942, 2871, 2848, 1625, 1614, 1600, 1513, 1470, 1456, 1249, 1114, 1100, m 1037, 819 cm⁻¹ ; HRMS for C₃₆ H₅₅ NO₂ (M+): Calcd. 533.4232; found 533.4218.

AW. Preparation of 14-Aza-4,4-dimethyl-5a-cholesta-8,14-dien-3b-ol (Compound 66a)

To a stirred solution of Compound 66b (300 mg, 0.56 mmole) and allyltrimethylsilane (0.18 ml, 1.12 mmole) in dry methylene chloride (6 ml) was added boron trifluoride etherate (0.39 ml, 2.53 mmole) portionwise and the mixture was stirred at room temperature for 16 hr. under nitrogen atmosphere. Saturated sodium bicarbonate solution was added slowly to make the solution basic and the product was extracted with ethyl acetate. The extract was washed with water and brine, dried over anhydrous sodium sulfate and evaporated to give a solid residue. It was purified by column chromatography on silica gel with elution by 3:7 ethyl acetate-hexane followed by 7:3 ethyl acetate - hexane, to afford 217 mg of purified Compound 66a (93.3% yield).

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.94 (dd, J=6.6 Hz, 15.6 Hz, 1H), 3.35 (dd, J=9.6 Hz, 15.3 Hz, 1H), 3.25 (dd, J=4.5 Hz, 11.4 Hz, 1H), 2.42 (d, J=6 Hz, 1H), 2.30 (dm J=7.5 Hz, 1H), 2.10-0.90 (m, 21H), 1.08 (s, 3H), 1.03 (s, 3H), 0.91 (d, J=5.7 Hz, 3H), 0.87 (d, J=6.6 Hz, 6H), 0.87 (s, 3H), 0.85 (s, 3H); IR (KBr): 3442, 3432, 2945, 2932, 2870, 1618, 1465, 1457, 1388, 1092, 1043, 1026, 1009 cm⁻¹ ; HRMS for C₂₈ H₄₇ NO (M+): Calcd. 413.3658; found 413.3646.

EXAMPLE 25 Preparation of 14-Aza-5a-cholesta-8,14-dien-3b-ol (Compound 70a) AX. Preparation of 3b-[(4-Methoxybenzyl)oxy]-14-oxo-5a-14,15-secocholest-8-ene-15-carboxylic acid (Compound 67)

By the method described for carboxylic acid (Compound 63) (Example 24-AS) 3b-[(4-Methoxyl-benzyl) oxy]-15-oxo-5a-14, 15-secocholest-8-ene-14-one (Compound 40) (7.5 mmole, crude material, prepared from Compound 38b) (3.8 g, 7.5 mmole)) was transformed to carboxylic acid (Compound 67) (4.08 g, foamy solid residue) The crude material was used for next transformation without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.27 (d, J=8.1 Hz, 2H), 6.87 (d, J=8.1 Hz, 2H), 4.53 (d, J=11 Hz, 1H), 4.47 (d, J=11 Hz, 1H), 3.80 (s, 3H), 3.39 (m, 1H), 2.43-0.90 (m, 27H), 1.01 (s, 3H), 0.98 (s, 3H), 0.95 (d, J=6.9 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H)); IR (film): 3150, 2935, 2867, 1706, 1657, 1614, 1514, 1466, 1459, 1377, 1302, 1249, 1172, 1036 cm⁻¹ ; HRMS for C₂₇ H₄₃ O₄ (M-CH₃ OC₆ H₄ CH₂): Calcd. 431.3161; found 431.3224.

AY. Preparation of 3b-[(4-Methoxybenzyl)oxy]-14-oxo-5a-14,15-secocholest-8-ene-15-carboxylic acid azide (Compound 68)

By the method described for acyl azide (Compound 64) (Example 24-AT) carboxylic acid (Compound 67) (7.5 mmole) was transformed to acyl azide (Compound 68) as an oil. The crude material was used for next transformation without purification.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.27 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.4 Hz, 2H), 4.52 (d, J=11.7 Hz, 1H), 4.47 (d, J=11.7 Hz, 1H), 3.80 (s, 3H), 3.39 (m, 1H), 2.42-0.90 (m, 26H), 1.02 (s, 3H), 0.96 (s, 3H), 0.93 (d, J=6.3 Hz, 3H), 0.86 (d, J=6.6 Hz, 6H); IR (film): 2953, 2935, 2868, 2135, 1720, 1658, 1620, 1614, 1513, 1467, 1377, 1248, 1180, 1172, 1087 cm⁻¹.

AZ. Preparation of 15-Aza-3b-[(4-methoxybenzyl)oxy]-15-methoxycarbonyl-5a-14,15-secocholest-8-en-14-one (Compound 69)

By the method described for carbamate (Compound 65) (Example 24-AU) acyl azide (Compound 68) (7.5 mmole) was transformed to carbamate (Compound 69) as an oil. The crude product was used for next reaction without purification. The analytical sample of purified Compound 69 was obtained by crystallization from diethyl ether and hexane.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.25 (d, J=8.2 Hz, 2H), 6.86 (d, J=8.4 Hz, 2H), 4.48 (s, 2H), 3.79 (s, 3H), 3.51 (s, 3H), 3.30 (m, 1H), 2.85 (m, 1H), 2.50-0.90 (m, 26H), 1.11 (d, J=6.6 Hz, 3H), 1.01 (s, 6H), 0.86 (dm J=6.6 Hz, 6H); IR (KBr): 3463, 3363, 2952, 2934, 2867, 1726, 1654, 1617, 1513, 1466, 1457, 1376, 1247, 1109, 1104, 1075, 1034 cm⁻¹ ; HRMS for C₃₄ H₅₀ O₃ (M-NH₂ CO₂ CH₃): Calcd. 506.3760; found 506.3769.

BA. Preparation of 14-Aza-3b-[(4-Methoxybenzyl)oxy]-5a-cholest-8,14-diene (Compound 50b)

By the method described for cyclic imine (Compound 66b) (Example 24-AV) carbamate (Compound 69) (7.5 mmole) was transformed to cyclic imine (Compound 70b). The solid residue was purified by column chromatography on silica gel with elution by 3:7 ethyl acetate-hexane to afford 2.33 g of purified Compound 70b as solid (61.4% overall yield from Compound 38b). It was crystallized from methylene chloride and hexane to give analytically purified sample.

Physical Data:

NMR (300 MHz, CDCl₃): delta 7.27 (d, J=8.7 Hz, 2H), 6.87 (d, J=8.7 Hz, 2H), 4.52 (d, J=11.4 Hz, 1H), 4.47 (d, J=11.4 Hz, 1H), 3.94 (dd, J=6.9 Hz, 15.3 Hz, 1H), 3.80 (s, 3H), 3.35 (s, 3H), 3.35 (m, 2H), 2.40-0.80 (m, 24H), 1.04 (s, 3H), 1.04 (s, 3H), 0.91 (d, J=6 Hz, 3H), 0.87 (s, 3H), 0.87 (d, J=6.3 Hz, 6H); IR (film): 3921, 2869, 2852, 1620, 1614, 1598, 1515, 1466, 1454, 1369, 1301, 1249, 1104, 1092, 1078, 1032, 820 cm⁻¹ ; HRMS for C₃₄ H₅₁ NOI₂ (M+): Calcd. 505.3920; found 505.3961.

BB. Preparation of 14-Aza-5a-cholesta- 8,14-dien-3b-ol (Compound 70a)

By the method described for azasterol (Compound 66a) (Example 24-AW) cyclic imine (Compound 70b) (1 g, 1.98 mmole) was transformed to azasterol (Compound 70a) as a solid. It was purified by column chromatography on silica gel with elution by 3:& ethyl acetate - hexane followed by 8:2 ethyl acetate - hexane to obtain 207 mg of unreacted starting material (Compound 70b) and 673 mg of azasterol (Compound 70a) (96.3% yield based on the recovered starting material). The product was crystallized from diethyl ether and hexane, m.p.=178°-179°.

Physical Data:

NMR (300 MHz, CDCl₃): delta 3.94 (dd, J=6.9 Hz, 15.3 Hz, 1H), 3.60 (m, 1H, 3.34 (dd, J=9.6 Hz, 15 Hz, 1H), 2.45-0.80 (m, 25H), 1.04 (s, 3H), 0.92 (d, J=6 Hz, 3H), 0.87 (s, 3H), 0.87 (d, J=6.6 Hz, 6H); IR (film): 3304, 2931, 2867, 2858, 1620, 1597, 1467, 1453, 1371, 1056, 1025 cm⁻¹ ; HRMS for C₂₆ H₄₃ BI (M+): Calcd. 385.3344; found 385.3344.

Bioactivity EXAMPLE 26 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase (HMGR) Suppression Assay

The ability of the compounds of Formula I to suppress the activity of HMGR, the rate limiting enzyme of cholesterol biosynthesis, was tested as follows.

Chinese Hamster Ovary (CHO) cells were divided twice weekly and were maintained in McCoy's 5A medium supplemented with 1% carbosil delipidated Fetal Bovine System (FBS) (obtained from Gibco Laboratories, Chagrin Falls, Ohio). Cells were harvested during the logarithmic phase of growth and cell cultures were prepared by adding 0.5×10 cells to each well in a 24 well cluster dish (obtained from Costar, Data Packaging Corp., Cambridge, Mass.) employing 1 ml of the above medium per each well. The cell cultures were incubated for 48 hr. at 37° in a 5% CO₂, 95% air environment. The test compounds in a 2.5% suspension of bovine serum albumin (BSA) (Fatty acid free) in ethanol were then added to the cultures such that the final ethanol and BSA concentrations in the incubation medium were 0.5% and 0.25% respectively. Treated cells were incubated with the indicated compounds for 6 hr. at 37° in a 5% CO₂, 95% air environment. Control cells were treated in an identical fashion to those which received test compound, except they were incubated with the BSA and ethanol suspension only.

HMGR activity was then measured in digitonin-permeabilized cells by the method developed by Leonard et al., J. Biol. Chem., 262: 7914-1719 (1987).

Specifically, the medium in each well was aspirated and the cells rinsed with a 50 mM solution of phosphate buffered saline (PBS). One ml of 30 mg/ml of digitonin in CSK buffer (prepared using 10 mM Pipes [piperazine-N,N'-bis (2-ethansulfonic) acid], 100 mM KCl, 2.5 mM MgCl₂, 300 mM sucrose, 1 mM EGTA, pH 6.8) was added to each well and incubated for 10 min. at 22° to permeabilize the cells. The buffer was carefully aspirated and the wells were rinsed twice each time with 1 ml of PBS. HMGR activity was measured directly by adding 75 ml of PIB buffer (50 mM potassium phosphate, 1 mM Na₂ EDTA, 10 mM dithiothreitol, pH 7.4) to each well and incubating the cells for 30 minutes at 37° as described above. The enzyme assay was initiated by the addition of 83 μl of substrate/cofactor mixture such that the final assay contained the following: 0.1M potassium phosphate, 5 mM dithiothreitol, 20 mM glucose-6-phosphate, 2.5 mM NADP, 0.175 units of glucose-6-phosphate dehydrogenase, 150 mM [¹⁴ C] HMG-Coenzyme A (15 DPM/pmol), pH 7.4. The assay mixture was incubated for 30 min. at 37° and terminated by the addition of 70 ml of [³ H]-mevalonic acid (35,000 DPM/assay), 0.15 mg/ml in 3N HCl.

The reaction was left to lactonize for an additional 30 min. at 37° or overnight at room temperature.

Reaction products were separated by thin layer chromatography on silica gel G (obtained from Analtech, Newark, Del.) developed in an unsaturated environment with acetone:benzene (3:2, v:v). The band corresponding to mevalonolactone was identified by exposure to iodine vapor and was scraped into counting vials. The extent of conversion of starting substrate, HMG-CoA, to mevalonic acid was determined by liquid scintillation counting in Biofluor (obtained from New England Nuclear, Boston, Mass.). Corrections for recovery and blank values were made for each sample. Protein determinations were made by Bio-Rad (Bio-Rad, Richmond, Calif.) dye binding assay according to the manufacturer's instruction using bovine serum albumin as standard. Cellular protein was solubilized from culture dishes by the addition of 20 μl of 16N KOH and assayed directly for protein amount. Suppression values are expressed as the amount of compound required to suppress HMGR activity by 50% relative to that of the controls. The results of HMGR suppression assays are reported in Table 1.

                  TABLE I                                                          ______________________________________                                         3-Hydroxy-3-Methylglutaryl Coenzyme A                                          Reductase (HMGR) Suppression Assay                                                    Ex. No.                                                                               IC.sub.50 (μM)                                                ______________________________________                                                1      0.18                                                                    2      0.3                                                                     3      0.17                                                                    6      0.075                                                                   7      0.04                                                                    8      2.5                                                                     10     0.2                                                                     13     2.5                                                                     16     2.5                                                                     17     1.95                                                                    18     0.3                                                                     19     2.08                                                                    386    0.08                                                                    672    --                                                                      673    1.46                                                                    677    2.5                                                                     678    --                                                                      857    0.06                                                                    858    0.55                                                                    859    0.06                                                                    1303   0.3                                                                     1508   1.25                                                                    1509   5.                                                                      1817   0.5                                                                     1818   0.16                                                             ______________________________________                                    

The ability of compounds of this invention to effectively suppress HMGR activity is demonstrated by the data in Table I. As a comparison, it should be noted that cholesterol, lanosta-8,24-diene-3b-ol and lanost-8-en-3b-ol, when tested under these same conditions, were without effect on measured HMGR activity. Thus, the potent HMGR suppression activities of these compounds make them very attractive as hypocholesterolemic agents.

EXAMPLE 27 Lowering Blood Cholesterol Levels in Hamsters

The ability of the compounds of Formula I to lower blood cholesterol levels has been demonstrated in hamsters utilizing the following protocol.

Male Golden Syrian hamsters (50-60 grams) were obtained from Charles River, Inc. (Wilmington, Mass.).

Animals were housed in individual suspension cages and were maintained on a light cycle consisting of 12 hours of light followed by 12 hours of dark. Animals were allowed free access to water and feed (Agway ground chow, RMH 3200, Agway, Syracuse, N.Y.) containing 1% (w/w) corn oil) for a minimum of 4 weeks.

Following this stabilization period a sample of blood was collected by orbital sinus bleeding under light ether anesthesia into heparinized capillary tubes. Plasma was separated by centrifugation (600×g for 10 minutes) and plasma cholesterols were determined by an autoanalyzer (Centrifichem 600, Baker Instruments, Allentown, Pa.). Based upon measured plasma cholesterol values, the animals were randomized into two groups such that the mean plasma cholesterol values were identical for both groups.

Animals in the two groups were then placed on one of two diets: (1) Diet A, consisting of ground chow plus 1% (w/w) corn oil, as described above; or (2) Diet B, consisting of Diet A plus 0.2% (w/w) of a test compound. Animals on Diet B, the treated animals, were allowed free access to feed and water, while animals on Diet A were pair-matched with Diet B animals and served as pair-fed controls. The animals were kept on their respective diets for 7-days at which time they were bled by cardiac puncture under CO₂ anesthesia. Total plasma cholesterol levels were determined as described above.

The results are presented in Table II. The data is reported as means +SEM (standard error of the mean), in units of mg/dl. The value "N" represents the number of animals in each group.

                  TABLE II                                                         ______________________________________                                         Effect of Various Test Compounds                                               Upon Plasma Cholesterol Levels in Hamsters                                                  Plasma Cholesterol                                                             Control Treated                                                   Example No.    (mg/dl).sup.1                                                   ______________________________________                                         1.sup.2        133.0 ± 4.0                                                                           120. ± 2.0                                                        (N = 20)  (N = 10)                                              ______________________________________                                          .sup.1 Values represent means ±SEM for the number of animals given in       parenthesis                                                                    .sup.2 Dosed at 0.2% (w/w) in feed                                       

As the data in Table II indicate, blood cholesterol levels can be significantly lowered by administration of compounds of Formula 1.

EXAMPLES 28-31

Scheme IX generally depicts the synthetic sequence for the preparation of the compounds of Examples 28-30. In the initial reaction, Compound 72 is preferably converted to Compound 73 using catalytic osmium tetroxide. Preferred methods for the other synthetic conversions are provided in the examples which follow this scheme. ##STR56##

EXAMPLE 28 Preparation of (22E)-4,4-Dimethyl-15-oxa-14α-vinylergosta-8,22-dien-3β-ol (Compound 78) BC. Preparation of (22E)-4,4-Dimethyl-ergosta-8,22-diene-3β,14α,15α-triol (Compound 73)

To a stirred solution of (22E)-4,4-dimethylergosta-8,14,22-trien-3β-ol (Compound 72, 10 g, 23.5 mmole) prepared by the method described by Dolle, et al. J. Org. Chem., 51: 4027 (1986), in 1,4-dioxane (400 ml) were added pyridine (10 ml), 1,8-diazabicyclo[4.4.0]undec-7-ene (DBU, Aldrich Chemical Co.) (4 ml), an aqueous solution of trimethylamine N-oxide dihydrate (Aldrich Chemical Co.) (5.4 g, 47 mmole in 50 ml of water) and a 20% solution of osmium tetraoxide in methylene chloride (1.5 ml, 1.18 mmole) and the mixture was heated under reflux for 24 hr. After cooling to room temperature was added 20% solution of sodium bisulfite (50 ml) and the mixture was stirred for 0.5 hr. It was extracted with ethyl acetate (3×200 ml) and the combined extracts were washed with water and brine. The organic extract was dried over magnesium sulfate and evaporated to give a solid residue. The crude product was dissolved in a minimum amount of ether and passed through a short silica gel column with elution by ether to remove the colored impurities. The solvent was evaporated off to afford a white crystalline solid (7.47 g) of the triol (Compound 73).

Physical data:

NMR (300 MHz, CDCl₃): delta 5.23 (dd, J=7.3 Hz, 15.4 Hz, 1H), 5.13 (dd, J=7.3 Hz, 15.4 Hz, 1H), 4.10 (m, 1H), 3.24 (m, 1H), 2.41 (d, J=9.5 Hz, 1H), 2.38-0.80 (m, 21H), 1.02(s,3H), 1.00(s,3H), 0.97 (d, J=5.8 Hz, 3H), 0.91 (d, J=6.6 Hz, 3H), 0.84-0.81 (m, 9H), 0.71 (s, 3H).

BD. Preparation of (22E)-4,4-Dimethyl-3β-hydroxy-15-oxo-14,15-secoergosta-8,22-dien-14-one (Compound 74)

To a stirred solution of the triol (Compound 73, 13.2 g, 28.9 mmole) in dry benzene (360 ml) in the dark was added lead tetracetate (12.8 g, 28.9 mmole) in small portions over a period of 1 hr. and the mixture was stirred at room temperature for 1 hr. under nitrogen atmosphere and in the dark. The mixture was filtered through Celite and the filtercake was rinsed several times. Evaporation of the solvent provide a foamy solid of the enone aldehyde (Compound 74) in near quantitative yield.

Physical data:

NMR (300 MHz, CDCl₃): delta 9.55 (brs, 1H), 5.24-5.22 (m, 2H), 3.30 (dd, J=4.7 Hz, 11.3 Hz, 1H), 2.56-0.80 (m, 20H), 1.03 (s, 3H), 1.01 (s, 3H), 0.93 (d, J=6.9 Hz, 3H), 0.93 (s, 3H), 0.89 (d, J=6.9 Hz, 3H), 0.82-0.77 (m, 9H).

BE. Preparation of (22E)-4,4-Dimethyl-3β-hydroxy-15-(1'-piperidino)-14,15-secoergosta-8,15,22-trien-14-one (Compound 75)

To a solution of the enone-aldehyde (Compound 74, 11.9 g, 26 mmole) in benzene (240 ml) was added piperidine (12 ml) and the mixture was refluxed under a Dean-Stark trap until the removal of water is completed (c.a. 1 hr.). The excess piperidine and the solvent were evaporated off under reduced pressure after cooling to give a foamy solid residue of the enamine (Compound 75) in quantitative yield.

Physical data:

NMR (300 MHz, CDCl₃) delta 5.56 (d, J=13.5 Hz, 1H), 5.28 (dd, J=8.4 Hz, 15.4 Hz, 1H), 5.14 (dd, J=7.7 Hz, 15.4 Hz, 1H), 4.20 (br, 1H), 4.17 (dd, J=10.6 Hz, 13.5 Hz, 1H), 3.28 (dd, J=4.7 Hz, 11.3 Hz, 1H), 2.88 (m, 4H), 2.80-0.80 (m, 19H), 1.60 (m, 4H), 1.04 (s, 3H), 1.03 (s, 3H), 0.95 (s, 3H), 0.93 (d, J=6.6 Hz, 3H), 0.91 (d, J=6.6 Hz, 3H), 0.84-0.79 (m, 9H).

BG. Preparation of (22E)-4,4-Dimethyl-3β-hydroxy-16-oxo-14,16-seco-D-nor-ergosta-8,22-dien-14-one (Compound 76)

A solution of the enamine (Compound 75, 26 mmole) in dry methylene chloride (200 ml), containing c.a. 10 mg of Sudan Red 7B as an indicator, was bubbled with ozone at -78° until the color become light pink. After stirring for 5 min. dimethyl sulfide (5 ml) was added and the mixture was stirred for 30 min. at -78°. The residue after evaporation of the solvent was dissolved in a small amount of ether and passed through a plug of silica gel to remove polar impurities. Evaporation of the solvent afforded a foamy solid of the enone aldehyde (Compound 76).

Physical data:

NMR (300 MHz, CDCl₃): delta 9.73 (d, J=4.7 Hz, 1H), 5.33 (m, 2H), 3.28 (dd, J=4.6 Hz, 11.5 Hz, 1H), 2.32 (br, 2H), 2.18 (dd, J=6.2 Hz, 13.5 Hz, 1H), 2.60-0.8 (m, 15H), 1.21 (s, 3H), 1.07 (s, 3H), 1.04 (d, J=6.6 Hz, 3H), 1.04 (s, 3H), 0.91 (d, J=6.9 Hz, 3H), 0.84-0.81 (m, 9H).

BH. Preparation of (22E)-3β16-Dihydroxy-4,4-dimethyl-14,16-seco-D-nor-ergosta-8,22-dien-14-one (Compound 77)

To a solution of the enone-aldehyde (Compound 76, 26 mmole) in methanol (115 ml) at -40° was added sodium borohydride (0.59 g, 15.6 mmole) and the mixture was stirred for 1 hr. at from about -40°, with warming to about 10°. The excess sodium borohydride was destroyed by stirring for 5 min. with acetic acid (1 ml). It was then neutralized with saturated solution of sodium bicarbonate and concentrated under reduced pressure. The residue was extracted with ethyl acetate (3×100 ml) and the combined extracts were washed with water and brine, dried over magnesium sulfate, and evaporated to give an oily residue. The crude product was column chromatographed on silica gel with elution by ethyl acetate - hexane (2:8) to give 6 g of pure enone-alcohol (Compound 77).

Physical data:

NMR (300 MHz, CDCl₃): delta 5.32-5.28 (m, 2H), 3.69 (dd, J=5.3 Hz, 6.8 Hz, 1H), 3.61 (dd, J=4.4 Hz, 6.8 Hz, 1H), 2.64-0.8 (m, 19H), 1.14 (d, J=7.0 Hz, 3H), 1.07 (s, 6H), 1.03 (s, 3H), 0.92 (d, J=7.0 Hz, 3H), 0.85-0.80 (m, 9H).

BI. Preparation of (22E)-4,4-Dimethyl-15-oxa-14α-vinyl-ergosta-8,22-dien-3β-ol (Compound 78)

To a solution of the enone-alcohol (Compound 77, 1.98 g, 4.45 mmole), 2,6-lutidine (1.71 ml, 14.7 mmole) and 4-dimethylamino-pyridine (0.1 g) in dry methylene chloride (22 ml) at 0° was added chlorotrimethysilane (1.7 ml, 13.4 mmole) dropwise and the mixture was stirred for 40 min. at 0° and for 10 min. at 25°. The reaction was quenched by methanol (1 ml) and the mixture was poured into ether. The ether solution was washed with water and brine, dried over magnesium sulfate and evaporated to give a foamy solid residue.

The residue was then dissolved in dry tetrahydrofuran (25 ml) and 1 M-vinyl magnesium bromide in dry tetrahydrofuran (8.9 ml, 8.9 mmole) was added. The mixture was heat under reflux for 1 hr. and cooled to 0°. It was treated with 1N HCl (18 ml) and extracted with ethyl acetate (3×30 ml). The combined extracts were washed with water and brine, dried over magnesium sulfate, and evaporated to give an oily residue.

It was dissolved in methanol (25 ml) containing p-toluenesulfonic acid (0.5 g) and the mixture was stirred for 16 hr. at room temperature. Then the reaction mixture was made basic with saturated solution of sodium bicarbonate and extracted with ethyl acetate (3×30 ml). The combined organic solutions were washed with brine, dried over magnesium sulfate and evaporated to afford to foamy solid residue. The crude product was purified by column chromatographed on silica gel with elution by ethyl acetate - hexane (1:9) to provide 1.12 g of pure vinyl-oxasterol (Compound 78).

Physical data:

NMR (300 MHz, CDCl₃) delta 5.71 (dd, J=11.0 Hz, 17.6 Hz, 1H), 5.26 (dd, J=7.9 Hz, 15.2 Hz, 1H), 5.11 (d, J=11.0 Hz, 1H), 5.10 (m, 1H), 5.00 (d, J=17.4 Hz, 1H), 3.67 (t, J=8.4 Hz, 1H), 3.49 (t, J=8.6 Hz, 1H), 3.29 (brt, J=5.3 Hz, 1H), 2.12-0.8 (m, 18H), 1.02 (s, 3H), 1.01 (s, 3H), 0.90 (d, 6.5 Hz, 3H), 0.84-0.8 (m, 15H).

EXAMPLE 29 BJ. Preparation of (22E)-15-Oxa-14α-vinyl-ergosta-8,22-dien-3β-ol (Compound 80)

By the method described for 4,4-dimethyl-vinyloxasterol (Compound 79) (Example 28-BC through BI) (22E)-ergosta-8,14,22-trien-3β-ol [prepared by the method described by Dolle, et al. J. Org. Chem., 51: 4027 (1986)] was transformed to the corresponding normethyl-vinyl-oxasterol (Compound 80).

Physical Data:

NMR (300 MHz, CDCl₃): delta 5.71 (dd, J=10.8 Hz, 7.2 Hz, 1H), 5.27 (dd, J=7.7 Hz, 15.1 Hz, 1H), 5.11 (dd, J=2.2 Hz, 10.8 Hz, 1H), 5.10 (m, 1H), 5.01 (dd, J=2.2 Hz, 17.2 Hz, 1H), 3.67 (t, J=8.10 Hz, 1H), 3.49 (t, J=8.8 Hz, 1H), 2.08-0.89 (m,21H), 1.04 (d, J=5.9 Hz, 3H), 0.97 (s, 3H), 0.90 (d, J=7.0 Hz, 3H), 0.84-0.80 (m, 9H).

EXAMPLE 30 BK. Preparation of 14α-Ethyl-15-oxa-ergost-8-en-3β-ol (Compound 81)

A solution of the vinyl-oxasterol (Compound 80, 50 mg, 0.12 mmole) and 10% palladium on carbon (10 mg) in 3 ml of ethyl acetate - acetic acid (95:5) was stirred under hydrogen atmosphere (1 atm.) for 30 min. After removal of the catalyst by filtration through Celite the solvents were evaporated to give a foamy solid of the ethyl-oxasterol (Compound 81) in quantitative yield.

Physical data:

NMR (300 MHz, CDCl₃): delta 3.76 (t, J=8.5 Hz, 1H), 3.66 (m, 1H), 3.43 (t, J=8.6 Hz, 1H), 2.17-0.75 (m, 26H), 0.97 (s, 3H), 0.94 (s, 3H), 0.84 (d, J=6.9 Hz, 3H), 0.81-0.73 (m, 12H).

EXAMPLE 31 Assay of ¹⁴ C-Acetate Incorporation into the Biosynthesis of Cholesterol

The HepG2 cells (a human hepatoma cell line) used in this example were obtained from the American Type Culture Collection (ATCC, Rockville, Md.). They were maintained in Dulbecco's Modified Eagles Medium and Ham's F12 Medium (1:1) supplemented with 10% heat inactivated Fetal Bovine serum, 10 μM Herpes, 1 mM sodium pyruvate, 1×Non-essential Amino Acids (Gibco) and 2 mM L-glutamine.

The cells were harvested by washing cultures with 10 ml Hank's Balanced Salt Solution (2×) and incubating with 0.125% Trypsin in Versene (0.02% EDTA) for approximately one minute. After the cells are visibly rounded and loosened from the flask, 9 ml of the above medium is added. The cells are transferred to a 100 mM culture dish and syringed up and down through a 20 gauge needle to break up aggregated clumps of cells. Cell cultures are plated at 0.1×10⁶ /ml and 0.075×10⁶ /ml in two 24 well plates, respectively, aliquoting 1 ml cells/well. The cells are allowed to attach for 24 hours (48 hours for the lower density plate) before washing 2× with HBSS and refed with 1 ml of the above medium with 1% Cabosil delipidated serum instead of Fetal Bovine Serum. The cells are treated with the test compounds after 24 hours of exposure to the delipidated serum media.

Chemicals are routinely prepared as a 10 mM solution in 100% ethanol or dimethyl sulfoxide (DMSO). All test compounds are added at 50 μM, 25 μM, 10 μM, 1 μM at a final concentration of 0.45% solvent, 0.25% Bovine Serum Albumin (BSA) suspension per well. The solvent BSA is sonicated for 10 seconds to ensure maximum solubilization before addition to the cells. Control wells receive solvent/BSA at the same concentrations as the drug treated cultures. After incubation for one hour at 37° C., 5% CO², 20 μCi/ml ³ H-MVAL is added per well in ethanol/medium so the final concentration of solvent is 1.2%. After 22 hours of incubation with the test compounds 2.5 μCi of ¹⁴ C-acetate is added per well for an additional 2 hours so that the final concentration of ethanol is 1.6%.

Two known cholesterol biosynthesis inhibitors are included with each assay, namely 25-hydroxycholesterol and Lovastatin, to determine the reliability and validity of each assay.

The cultures are harvested by aspirating the media and washing twice with ice cold 0.5M Tris, 0.15M NaCl, pH 7.4 to remove excess radiolabel not incorporated into the cells. Stop Reagent (1 ml of 15% potassium hydroxide, 85% methanol, 100 μg/ml butylated hydroxytoluene (BHT) is added to each well and the plate is sonicated in a mild water sonicating bath to release the cells from the bottom of the well. The digested cell extracts are transferred to 15 ml extraction tubes. Each well is rinsed with an additional 1 ml of the Tris/NaCl buffer which is added to the appropriate extraction tube. An aliquot (100 μl) is removed for protein determination at this point if desired.

The cell extracts are saponified at 80° C. for 30 minutes. After cooling 8 ml petroleum ether is added and the tubes are twirled on a rotary extractor for 5-10 minutes to extract the sterols into the organic solvent phase. The top organic phase is removed and passed through a Silica Seppak (Waters) which binds all sterols and free fatty acids. Sterols are eluted with a 5 ml diethyl ether:hexane (1:1) rinse. This sterols extraction is automated using the Millilab (Waters) to ensure reproducibility and accuracy from sample to sample.

The eluted sterols are dried under nitrogen gas and resuspended in 150 μL ethanol. A 15 μL aliquot is removed from each sample and added to a scintillation vial filled with Formula 989 (NEN). The samples are counted on the dual label ³ H:¹⁴ C program on the Beckman scintillation counter Model LS 7800.

The incorporation of both radiolabeled precursors into sterols is compared between the treated and non-treated (control) cultures and expressed as "% control" for each precursor. Test compounds are classified as being "active" or "inactive" from these results and IC₅₀ values were determined for the active compounds.

Analysis of sterol profiles is performed on the remainder of the sample by reversed phase HPLC. Analyses are done using an Ultrasphere octyl column (Altex) (0.46×25 cm), with a mobile phase consisting of acetonitrile:methanol:H₂ O (44.5:44.5:10). Chromatography is performed at a flow rate of 1.5 ml per minute at 45° C.

RESULTS

The following IC₅₀ values represent the level of inhibition of the incorporation of ¹⁴ C-acetate into the cholesterol biosynthesis pathway, as determined above:

    ______________________________________                                         Compound            IC.sub.50 (μM)                                          ______________________________________                                         Example 28 (Compound 78)                                                                           0.05                                                       Example 29 (Compound 80)                                                                           >50.0                                                      Example 30 (Compound 81)                                                                           0.60                                                       ______________________________________                                    

AGRICULTURAL UTILITY

Some compounds of this invention have also shown utility as plant disease control agents. They are effective in controlling a wide range of plant diseases, including economically important diseases caused by fungi of the Ascomycetes, Basidiomycetes, and Oomycetes classes.

Plant disease control is ordinarily accomplished by applying an effective amount of the compound either pre- or post-infection to the portion of the plant to be protected, such as the roots, stems, foliage, fruit, seeds, tubers or bulbs, or to the media (soil or sand) in which the plants to be protected are growing. The compound may also be applied to the seed from which the plants to be protected are to be grown.

Rates of application for these compounds can be influenced by many factors of the environment and should be determined under actual use conditions. Foliage can normally be protected when treated at a rate of from less than 1 g/ha to 5000 g/ha of active ingredient. Plants growing in soil treated at a rate of from less than 1 g/ha to 5000 g/ha of active ingredient. Plants growing in soil treated at a concentration from 0.1 to about 20 kg/ha can be protected from disease. Seed and seedlings can normally be protected when seed is treated at a rate of from 0.06 to about 3 grams per kilogram of seed.

EXAMPLE A

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on apple seedlings. The following day plants were inoculated with a spore suspension of Venturia inaequalis, the casual agent of apple scab, and incubated in a saturated humidity chamber at 20° C. for 24 hours and then in a growth chamber at 22° C. for 11 days, when disease ratings were made.

EXAMPLE B

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 0124 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on peanut seedlings. The following day plants were incubated in a saturated humidity chamber at 22° C. for 24 hours, then in a high humidity chamber at 27° C. for 7 days, and then in a growth chamber at 29° C. for 7 days, when disease ratings were made.

EXAMPLE C

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 0914 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on broad bean seedlings. The following day plants were inoculated with a spore suspension of Botyrtis cinerea, the causal agent of bean grey mold, and incubated in a saturated humidity chamber at 20° C. for 24 hours when disease ratings were made.

EXAMPLE D

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on wheat seedlings. The following day plants were inoculated with a spore dust of Ersiphe graminis f. sp. tritici, the causal agent of wheat powdery mildew, and incubated in a growth chamber at 20° C. for 6 days, when disease ratings were made.

EXAMPLE E

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on rice seedlings. The following day plants were inoculated with a spore suspension of Pyricularia oryzae, the causal agent of rice blast, and incubated in a saturated humidity chamber at 27° C. for 24 hours and then in a growth chamber at 29° C. for 4 days, when disease ratings were made.

EXAMPLE F

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 220 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on rice seedlings. The following day plants were inoculated with a mycelial suspension of Rhizoctonia solani, the causal agent of rice sheath blight, and incubated in a saturated humidity chamber at 27° C. for 48 hours and then in a growth chamber at 29° C. for 4 days, when disease ratings were made.

EXAMPLE G

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 220 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on wheat seedlings. The following day plants were inoculated with a spore suspension of Puccinia recondita, the causal agent of wheat leaf rust, and incubated in a saturated humidity chamber at 20° C. for 48 hours and then in a growth chamber at 20° C. for 8 days, when disease ratings were made.

EXAMPLE H

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on tomato seedlings. The following day plants were inoculated with a spore suspension of Phytophthora infestans, the causal agent of tomato late blight, and incubated in a saturated humidity chamber at 20° C. for 48 hours and then in a growth chamber at 20° C. for 5 days, when disease ratings were made.

EXAMPLE I

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on grape seedlings. The following day plants were inoculated with a spore suspension of Plasmopara victicola, the causal agent of grape downy mildew, and incubated in a saturated humidity chamber at 20° C. for 24 hours and then in a growth chamber at 20° C. for 7 days, and then held in a saturated humidity chamber at 20° C. for 24 hours, when disease ratings were made.

EXAMPLE J

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on grape seedlings. The following day plants were inoculated with a spore suspension of Botrytis cinerea, the causal agent of grape grey mold, and incubated in a saturated humidity chamber at 20° C. for 96 hours when disease ratings were made.

EXAMPLE K

The test compounds were dissolved in acetone in an amount equal to 6% of the final volume and then suspended at a concentration of 200 ppm in purified water containing 250 ppm of the surfactant TREM 014 (polyhydric alcohol esters). This suspension was sprayed to the point of run-off on cucumber seedlings. The following day plants were inoculated with a spore suspension of Botrytis cinerea, the causal agent of cucumber grey mold, and incubated in a saturated humidity chamber at 20° C. for 4 days when disease ratings were made.

Results of Examples A-K for two compounds of the invention are presented in Table III. In this table, a rating of 100 indicated 100% disease control, and a rating of 0 indicates no disease control relative to untreated plants that were inoculated and incubated as described in each Example. A dashed entry indicates the specified test was not performed.

                  TABLE III                                                        ______________________________________                                         Example A     B     C   D   E   F   G    H   I    J   K                        ______________________________________                                         1817    90    25    97  92  1   0   62   --  --   97  99                       1818    99    95    95  98  6   0   100  94  100  78  100                      ______________________________________                                    

The present invention has been described in detail, including the preferred embodiments thereof. However, it will be appreciated that those skilled in the art, upon consideration of the present disclosure, may make modifications and/or improvements on this invention and still be within the scope and spirit of this invention as set forth in the following claims. 

What is claimed is:
 1. Compounds having the formula: ##STR57## wherein R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation; andthe substituents R₁, independently each of R₂, and R₃, are selected from the groups defined as follows: R₁ is ═O, OR₇, or OCOR₇ ; R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, or benzyl; R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, CSR₄, C(═NR₄)R₄, COR₅, CSR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ CSR₄, C(R₄)₂ C(═NR₄)R₄, C(R₄)₂ COR₅, C(R₄)₂ CRS₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CR₄ NN(R₄)₂, CR₄ NNR₄ R₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ NHN(R₄)₂, CHR₄ NHNR₄ R₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CR₄ NN(R₄)₂, CHR₄ CR₄ NNR₄ R₆, CHR₄ CHR.sub. 4 NHOR₄, CHR₄ CHR₄ NHOR₆, CHR₄ CHR₄ NHN(R₄)₂, C(O)NH₄ OR₄, C(O)NR₄ OR₆, C(S)NR₄ OR₄, C(S)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ Z, C.tbd.CC(R₄)₂ Z, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl; R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₅ is OR₄, SR₄, N(R₄)₂, or NR₄ R₆ ; R₆ is COR₄, CSR₄, or C(═NR₄)R₄ ; R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; X is O or s; Z is halogen; and n is 1;and their physiologically acceptable salts.
 2. The compounds of claim 1 wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl.
 3. The compounds of claim 1, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl.
 4. The compounds of claim 1, wherein X is O or S.
 5. The compounds of claim 1, wherein n is
 1. 6. The compounds of claim 1, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₂)₄ COR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl; X is O or S; and n is
 1. 7. The compounds of claim 1, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, C(R₄)₂ R₄, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₅, OR₆, epoxy)-C₁ -C₄ alkyl; X is O or S; and n is
 1. 8. The compounds of claim 1, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl, C₂ -C₃ alkynyl, or benzyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; and R₆ is COR₄.
 9. The compounds of claim 1, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl, C₂ -C₃ alkynyl, or benzyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 10. The compounds of claim 1, wherein:R₂ is H, C₁ -C₃ alkyl, or C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 11. The compounds of claim 1, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, CH₂ R₅, CHOHCH═CH₂, COR₄, COR₅, CH₂ CH₂ R₅, CH₂ COR₄, CN, CH═NOR₄, CH═NOR₆, CONHOR₄, CONHOR₆, CH═CHR₆, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR58## R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; and X is O or S.
 12. The compounds of claim 1, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, CH₂ R₅, CHOHCH═CH₂, COR₄, COR₅, CH₂ CH₂ R₅, CH₂ COR₄, CN, CH═NOR₄, CH═NOR₆, CONHOR₄, CONHOR₆, CH═CHR₆, CHOHCH₂ OH, CHOHCHOHCH₂ OH ##STR59## R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₄ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 13. The compounds of claim 1, wherein:R₂ is H or CH₃, R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CH₂ OCOCH₃, CHO, COCH₃, CO₂ H, CONH₂, CO₂ CH₃, CH₂ CH₂ OH, CH₂ CHO, CH₂ CO₂ H, CH₂ CO₂ CH₃, CN, CH═NOH,CH═NOCOCH₃, CONHOH, CONHOCOCH₃, CH═CHCO₂ CH₃, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR60## and X is O or S.
 14. The compounds of claim 1, wherein:R₂ is H or CH₃, R₃ IS H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CH₂ OCOCH₃, CHO, COCH₃, CO₂ H, CONH₂, CO₂ CH₃, CH₂ CH₂ OH, CH₂ CHO, CH₂ CO₂ H, CH₂ CO₂ CH₃, CN, CH═NOH, CH═NOCOCH₃, CONHOH, CONHOCOCH₃, CH═CHCO₂ CH₃, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR61## X is O or S; and n is
 1. 15. The compounds of claim 1, wherein:R₂ is H, CH₃ ; R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CHO, CO₂ H, CONH₂, COCH₃, CH═NOH, CHOHCH₂ OH, CHOHCHOHCH₂ OH; and X is O or S.
 16. The compounds of claim 1, wherein:R₂ is H, CH₃ ; R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CHO, CO₂ H, CONH₂, COCH₃, CH═NOH, CHOHCH₂ OH, CHOHCHOHCH₂ OH; X is O or S; and n=1.
 17. A compound of claim 1 which is selected from the group consisting of:15-Oxa-dihydrolanosterol, 4,4-Dimethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-oxa-14α-vinyl-5α-cholest8-en-3β-ol, 3β-Acetoxy-4,4-dimethyl-15-oxa-14α-vinyl-5α-cholest-8-ene, 3β-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol, 3β-Acetoxy-15-oxa-32-oxo-lanost-8-ene, 15-Oxa-32-oxo-dihydrolanosterol, 15-Oxa-lanost-8-ene-3β,32-diol, 15-Oxa-32-vinyl-lanost-8-ene-3β,32-diol, 3β-Hydroxy-15-oxa-lanost-8-en-32-aldoxime, 3β-Hydroxy-15-oxa-lanost-8-en-32-carboxylic acid, 14α-Methyl-15-oxa-5α-cholest-8-en-3β-ol, 15-Oxa-14α-vinyl-5α-cholest-8-en-3β-ol, 14α-(1',2'-Dihydroxy-ethyl)-15-oxa-5α-cholest-8-en-3β-ol, 14α-Formyl-15-oxa-5α-cholest-8-en-3β-ol, 14α-Hydroxymethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-thia-5β-cholest-8-en-3β-ol, 15-Thia-dihydrolanosterol, 4,4-Dimethyl-15-thia-14a-vinyl-5β-cholest-8-en 3β-ol, 3β-Hydroxy-15-thia-lanost-8-en-15-oxide.
 18. A compound of claim 1 which is selected from the group consisting of:15-Oxa-dihydrolanosterol, 4,4-Dimethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-oxa-14α-vinyl-5α-cholest8-en-3β-ol, 3β-Acetoxy-4,4-dimethyl-15-oxa-14α-vinyl-5αcholest-8-ene, 3β-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol, 3β-Acetoxy-15-oxa-32-oxo-lanost-8-ene, 15-Oxa-32-oxo-dihydrolanosterol, 15-Oxa-lanost-8-ene-3β,32-diol, 15-Oxa-32-vinyl-lanost-8-ene-3β,32-diol, 3β-Hydroxy-15-oxa-lanost-8-en-32-aldoxime, 3β-Hydroxy-15-oxa-lanost-8-en-32-carboxylic acid, 14α-Methyl-15-oxa-5α-cholest-8-en-3β-ol, 15-Oxa-14α-vinyl-5α-cholest-8-en-3β-ol, 14α-(1',2'-Dihydroxy-ethyl)-15-oxa-5αcholest-8-en-3β-ol, 14α-Formyl-15-oxa-5α-cholest-8-en-3β-ol, 14α-Hydroxymethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-thia-5α-cholest-8-en-3β-ol, 15-Thia-dihydrolanosterol,
 4. 4-Dimethyl-15-thia-14α-vinyl-5αcholest-8-en-3β-ol,3β-Hydroxy-15-thia-lanost-8-en-15-oxide.
 19. A composition suitable for decreasing cholesterol formation in mammals, said composition comprising (i) an effective amount of an active compound of the formula: ##STR62## wherein R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation; andwherein the substituents R₁, independently each of R₂, and R₃, are selected from the groups defined as follows: R₁ is ═O, OR₇, or OCOR₇ ; R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, or benzyl; R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, CSR₄, C(═NR₄)R₄, COR₅, CSR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ CSR₄, C(R₄)₂ C(═NR₄)R₄, C(R₄)₂ COR₅, C(R₄)₂ CRS₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CR₄ NN(R₄)₂, CR₄ NNR₄ R₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ NHN(R₄)₂, CHR₄ NHNR₄ R₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CR₄ NN(R₄)₂, CHR₄ CR₄ NNR₄ R₆, CHR₄ CHR.sub. 4 NHOR₄, CHR₄ CHR₄ NHOR₆, CHR₄ CHR₄ NHN(R₄)₂, C(O)NR₄ OR₄, C(O)NR₄ OR₆, C(S)NR₄ OR₄, C(S)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ Z, C.tbd.CC(R₄)₂ Z, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl; R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₅ is OR₄, SR₄, N(R₄)₂, or NR₄ R₆ ; R₆ is COR₄, CSR₄, or C(═NR₄)R₄ ; R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; X is O or S; Z is halogen; and n is 1;and their physiologically acceptable salts; and (ii) an acceptable pharmaceutical or veterinary carrier or diluent.
 20. The composition of claim 19, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl.
 21. The composition of claim 19, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆,CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄,OR₆, epoxy)-C₁ -C₆ alkyl.
 22. The composition of claim 19, wherein X is O or S.
 23. The composition of claim 19, wherein n is
 1. 24. The composition of claim 19, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl; X is O or S; and n is
 1. 25. The composition of claim 19, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; X is O or S; and n is
 1. 26. The composition of claim 19, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl, C₂ -C₃ alkynyl, or benzyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; and R₆ is COR₄.
 27. The composition of claim 19, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl, C₂ -C₃ alkynyl, or benzyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₅ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 28. The composition of claim 19, wherein:R₂ is H, C₁ -C₃ alkyl, or C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(R₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, or phenyl or phenyl substituted by C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 29. The composition of claim 19, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, CH₂ R₅, CHOHCH═CH₂, COR₄, COR₅, CH₂ CH₂ R₅, CH₂ COR₄, CN, CH═NOR₄, CH═NOR₆, CONHOR₄, CONHOR₆, CH═CHR₆, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR63## R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted by C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃, or benzyl; R₆ is COR₄ ; and X is O or S.
 30. The composition of claim 19, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, CH₂ R₅, CHOHCH═CH₂, COR₄, COR₅, CH₂ CH₂ R₅, CH₂ COR₄, CN, CH═NOR₄, CH═NOR₆, CONHOR₄, CONHOR₆, CH═CHR₆, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR64## is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkenyl, phenyl or phenyl substituted by C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 31. The composition of claim 19, wherein:R₂ is H or CH₃, R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CH₂ OCOCH₃, CHO, COCH₃, CO₂ H, CONH₂, CO₂ CH₃, CH₂ CH₂ OH, CH₂ CHO, CH₂ CO₂ H, CH₂ CO₂ CH₃, CN, CH═NOH, CH═NOCOCH₃, CONHOH, CONHOCOCH₃, CH═CHCO₂ CH₃, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR65## and X is O or S.
 32. The composition of claim 19, wherein:R₂ is H or CH₃, R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CH₂ OCOCH₃, CHO, COCH₃, CO₂ H, CONH₂, CO₂ CH₃, CH₂ CH₂ OH, CH₂ CHO, CH₂ CO₂ H, CH₂ CO₂ CH₃, CN, CH═NOH, CH═NOCOCH₃, CONHOH, CONHOCOCH₃, CH═CHCO₂ CH₃, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR66## and X is O or S; and n is
 1. 33. The composition of claim 19, wherein:R₂ is H, CH₃ ; R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CHO, CO₂ H, CONH₂, COCH₃, CH═NOH, CHOHCH₂ OH, CHOHCHOHCH₂ OH; and X is O or S.
 34. The composition of claim 19, wherein:R₂ is H, CH₃ ; R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CHO, CO₂ H, CONH₂, COCH₃, CH═NOH, CHOHCH₂ OH, CHOHCHOHCH₂ OH; X is O or S; and n is
 1. 35. A composition of claim 19, wherein the preferred compound is selected from the group consisting of:15-Oxa-dihydrolanosterol, 4,4-Dimethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-oxa-14α-vinyl-5α-cholest8-en-3β-ol, 3β-Acetoxy-4,4-dimethyl-15-oxa-14α-vinyl-5αcholest-8-ene, 3β-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol, 3β-Acetoxy-15-oxa-32-oxo-lanost-8-ene, 15-Oxa-32-oxo-dihydrolanosterol, 15-Oxa-lanost-8-ene-3β,32-diol, 15-Oxa-32-vinyl-lanost-8-ene-3β,32-diol, 3β-Hydroxy-15-oxa-lanost-8-en-32-aldoxime, 3β-Hydroxy-15-oxa-lanost-8-en-32-carboxylic acid, 14α-Methyl-15-oxa-5α-cholest-8-en-3β-ol, 15-Oxa-14α-vinyl-5α-cholest-8-en-3β-ol, 14α-(1',2'-Dihydroxy-ethyl)-15-oxa-5αcholest-8-en-3β-ol, 14α-Formyl-15-oxa-5α-cholest-8-en-3β-ol, 14β-Hydroxymethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-thia-5α-cholest-8-en-3β-ol, 15-Thia-dihydrolanosterol,
 4. 4-Dimethyl-15-thia-14α-vinyl-5αcholest-8-en-3β-ol,3β-Hydroxy-15-thia-lanost-8-en-15-oxide.
 36. The composition of claim 19, wherein the preferred compound is selected from the group consisting of:15-Oxa-dihydrolanosterol, 4,4-Dimethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-oxa-14β-vinyl-5β-cholest8-en-3β-ol, 3β-Acetoxy-4,4-dimethyl-15-oxa-14α-vinyl-5αcholest-8-ene, 3β-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol, 3β-Acetoxy-15-oxa-32-oxo-lanost-8-ene, 15-Oxa-32-oxo-dihydrolanosterol, 15-Oxa-lanost-8-ene-3β,32-diol, 15-Oxa-32-vinyl-lanost-8-ene-3β,32-diol, 3β-Hydroxy-15-oxa-lanost-8-en-32-aldoxime, 3β-Hydroxy-15-oxa-lanost-8-en-32-carboxylic acid, 14α-Oxa-D-homo-dihydrolanosterol, 4,4-Dimethyl-14α-oxa-D-homo-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-14α-oxa-14α-vinyl-D-homo-5α-cholest-8en-3.beta.-ol, 32-Hydroxymethyl-14α-oxa-D-homo-lanost-8-ene-3β,32-diol, 14α-Oxa-32-oxo-D-homo-dinhydrolanosterol, 14α-Methyl-15-oxa-5α-cholest-8-en-3β-ol, 15-Oxa-14α-vinyl-5α-cholest-8-en-3β-ol, 14α-(1',2'-Dihydroxy-ethyl)-15-oxa-5-cholest-8-,en-3β-ol, 14α-Formyl-15-oxa-5α-cholest-8-en-3β-ol, 14α-Hydroxymethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-thia-5α-cholest-8-en-3β-ol, 15-Thia-dihydrolanosterol, 4,4-Dimethyl-15-thia-14α-vinyl-5α-cholest-8-en-,3β-ol, 3β-Hydroxy-15-thia-lanost-8-en-15-oxide, 4,4-Dimethyl-14α-thia-D-homo-5α-cholest-8-en-,3β-ol, 14α-Thia-D-homo-dihydrolanosterol.
 37. A method of decreasing cholesterol formation in mammals in need of such therapy, said method comprising administering an effective amount of an active compound of the formula: ##STR67## wherein R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation; andwherein the substituents R₁, independently each of R₂, and R₃, are selected from the groups defined as follows: R₁ is ═O, OR₇, or OCOR₇ ; R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, or benzyl; R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, CSR₄, C(═NR₄)R₄, COR₅, CSR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ CSR₄, C(R₄)₂ C(═NR₄)R₄, C(R₄)₂ COR₅, C(R₄)₂ CRS₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CR₄ NN(R₄)₂, CR₄ NNR₄ R₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ NHN(R₄)₂, CHR₄ NHNR₄ R₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CR₄ NN(R₄)₂, CHR₄ CR₄ NNR₄ R₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, CHR₄ CHR₄ NHN(R₄)₂, C(O)NR₄ OR₄, C(O)NR₄ OR₆, C(S)NR₄ OR₄, C(S)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ Z, C.tbd.CC(R₄)₂ Z, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-OR₄, OR₆, epoxy)-C₁ -C₆ alkyl; R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₅ is OR₄, SR₄, N(R₄)₂, or NR₄ R₆ ; R₆ is COR₄, CSR₄, or C(═NR₄)R₄ ; R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; X is O or S; Z is halogen; and n is 1;and their physiologically acceptable salts in an acceptable pharmaceutical or veterinary carrier or diluent to said mammal.
 38. The method of claim 37, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ OR₆,C.tbd.CC(R₄)₂ OR₆, or poly-(R₄, OR₆, epoxy)-C₁ -C₆ alkyl.
 39. The method of claim 37, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl.
 40. The method of claim 37, wherein x is O or S.
 41. The method of claim 37, wherein n is
 1. 42. The method of claim 37, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, C(R₄)₂ Z, C(R₄)₂ C(R₄)₂ Z, CN, CR₄ NOR₄, CR₄ NOR₆, CHR₄ NHOR₄, CHR₄ NHOR₆, CHR₄ CR₄ NOR₄, CHR₄ CR₄ NOR₆, CHR₄ CHR₄ NHOR₄, CHR₄ CHR₄ NHOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, C.tbd.CR₆, CR₄ ═CR₄ C(R₄)₂ OR₆, C.tbd.CC(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₆ alkyl; X is O or S; and n is
 1. 43. The method of claim 37, wherein:R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; X is O or S; and n is
 1. 44. The method of claim 37, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl, C₂ -C₃ alkynyl, or benzyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; and R₆ is COR₄.
 45. The method of claim 37, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl, C₂ -C₃ alkynyl, or benzyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 46. The method of claim 37, wherein:R₂ is H, C₁ -C₃ alkyl, or C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C(R₄)₂ R₅, COR₄, COR₅, C(R₄)₂ C(R₄)₂ R₅, C(R₄)₂ COR₄, C(R₄)₂ COR₅, CN, CR₄ NOR₄, CR₄ NOR₆, C(O)NR₄ OR₄, C(O)NR₄ OR₆, CR₄ ═CR₄ R₆, CR₄ ═CR₄ C(R₄)₂ OR₆, or poly-(OR₄, OR₆, epoxy)-C₁ -C₄ alkyl; R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted by C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃, or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 47. The method of claim 37, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, CH₂ R₅, CHOHCH═CH₂, COR₄, COR₅, CH₂ CH₂ R₅, CH₂ COR₄, CN, CH═NOR₆, CH═NOR₅, CONHOR₄, CONHOR₆, CH═CHR₆, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR68## R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, phenyl or phenyl substituted by C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃, or benzyl; R₆ is COR₄ ; and X is O or S.
 48. The method of claim 37, wherein:R₂ is H, C₁ -C₃ alkyl, C₂ -C₃ alkenyl; R₃ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, CH₂ R₅, CHOHCH═CH₂, COR₄, COR₆, CH₂ COR₄, CN, CH═NOR₄, CH═NOR₆, CONHOR₄, CONHOR₆, CH═CHR₆, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR69## R₄ is H, C₁ -C₄ alkyl, C₂ -C₄ alkenyl, C₂ -C₄ alkynyl, phenyl or phenyl substituted by C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃, or benzyl; R₆ is COR₄ ; X is O or S; and n is
 1. 49. The method of claim 37, wherein:R₂ is H or CH₃, R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CH₂ OCOCH₃, CHO, COCH₃, CO₂ H, CONH₂, CO₂ CH₃, CH₂ CH₂ OH, CH₂ CHO, CH₂ CO₂ H, CH₂ CO₂ CH₃, CN, CH═NOH, CH═NOCOCH₃, CONHOH, CONHOCOCH₃, CH═CHCO₂ CH₃, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR70## and X is O or S.
 50. The method of claim 37, wherein:R₂ is H or CH₃, R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH≡CH₂, CH₂ OCOCH₃, CHO, COCH₃, CO₂ H, CONH₂, CO₂ CH₃, CH₂ CH₂ OH, CH₂ CHO, CH₂ CO₂ H, CH₂ CO₂ CH₃, CN, CH═NOH, CH═NOCOCH₃, CONHOH, CONHOCOCH₃, CH═CHCO₂ CH₃, CHOHCH₂ OH, CHOHCHOHCH₂ OH, ##STR71## and X is O or S; and n is
 1. 51. The method of claim 37, wherein:R₂ is H, CH₃ ; R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CHO, CO₂ H, CONH₂, COCH₃, CH═NOH, CHOHCH₂ OH, CHOHCHOHCH₂ OH; and X is O or S.
 52. The method of claim 37, wherein:R₂ is H, CH₃ ; R₃ is H, CH₃, CH═CH₂, CH₂ OH, CHOHCH═CH₂, CHO, CO₂ H, CONH₂, COCH₃, CH═NOH, CHOHCH₂ OH, CHOHCHOHCH₂ OH; X is O or S; and n is
 1. 53. The method of claim 37, wherein the preferred compound is selected from the group consisting of:15-Oxa-dihydrolanosterol,
 4. 4-Dimethyl-15-oxa-5α-cholest-8-en-3β-ol,4,4-Dimethyl-15-oxa-14α-vinyl-5α-cholest8-en-3β-ol, 3β-Acetoxy-4,4-dimethyl-15-oxa-14α-vinyl-5-cholest-8-ene, 3β-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol, 3β-Acetoxy-15-oxa-32-oxo-lanost-8-ene, 15-Oxa-32-oxo-dihydrolanosterol, 15-Oxa-lanost-8-ene-3β,32-diol, 15-Oxa-32-vinyl-lanost-8-ene-3β,32-diol, 3β-Hydroxy-15-oxa-lanost-8-en-32-aldoxime, 3β-Hydroxy-15-oxa-lanost-8-en-32-carboxylic acid, 14α-Oxa-32-oxo-D-homo-dihydrolanosterol, 14α-Methyl-15-oxa-5α-cholest-8-en-3β-ol, 15-Oxa-14α-vinyl-5α-cholest-8-en-3β-ol, 14α-(1',2'-Dihydroxy-ethyl)-15-oxa-5α-cholest-8en-β-ol, 14α-Formyl-15-oxa-5α-cholest-8-en-3β-ol, 14α-Hydroxymethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-thia-5α-cholest-8-en-3β-ol, 15-Thia-dihydrolanosterol, 4,4-Dimethyl-15-thia-14-vinyl-5α-cholest-8-en-,3β-ol, 3β-Hydroxy-15-thia-lanost-8-en-15-oxide, 4,4-Dimethyl-14α-thia-D-homo-5α-cholest-8-en3β-ol.
 54. The method of claim 37, wherein the preferred compound is selected from the group consisting of:15-Oxa-dihydrolanosterol, 4,4-Dimethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-oxa-14α-vinyl-5α-cholest8-en-3β-ol, 3β-Acetoxy-4,4-dimethyl-15-oxa-14α-vinyl-5αcholest-8-ene, 3β-Acetoxy-32-hydroxymethyl-15-oxa-lanost-8-en-32-ol, 3β-Acetoxy-15-oxa-32-oxo-lanost-8-ene, 15-Oxa-32-oxo-dihydrolanosterol, 15-Oxa-lanost-8-ene-3β,32-diol, 15-Oxa-32-vinyl-lanost-8-ene-3β,32-diol, 3β-Hydroxy-15-oxa-lanost-8-en-32-aldoxime, 3β-Hydroxy-15-oxa-lanost-8-en-32-carboxylic acid, 1α -Oxa-32-D-homo-dihydrolanosterol, 14α-Methyl-15-oxa-5α-cholest-8-en-3β-ol, 15-Oxa-14α-vinyl-5α-cholest-8-en-3β-ol, 14α-(1',2'-Dihydroxy-ethyl)-15-oxa-5α-cholest-8-, en-3β-ol, 14α-Formyl-15-oxa-5α-cholest-8-en-3β-ol, 14α-Hydroxymethyl-15-oxa-5α-cholest-8-en-3β-ol, 4,4-Dimethyl-15-thia-5α-cholest-8-en-3β-ol, 15-Thia-dihydrolanosterol, 4,4-Dimethyl-15-thia-14α-vinyl-5α-cholest-8-en-, 3β-ol, 3β-Hydroxy-15-thia-lanost-8-en-15-oxide.
 55. A process for the formation of 15-thia-lanosterols having the formula: ##STR72## wherein R is a side chain having either 8 or 9 carbon atoms and from 15 to 20 hydrogen atoms, optionally with one site of unsaturation; andwherein the substituents R₁, independently each of R₂, and R₃, are selected from the groups defined as follows: R₁ is OR₇ or OCOR₇ ; R₂ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, or benzyl; R₃ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, benzyl, C(R₄)₂ R₅, C(R₄)₂ C(R₄)₂ R₅, CR₄ ═CR₄ R₆, C.tbd.CR₆ ; R₄ is H, C₁ -C₆ alkyl, C₂ -C₆ alkenyl, C₂ -C₆ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; R₅ is OR₄, SR₄, N(R₄)₂, or NR₄ R₆ ; R₆ is COR₄, CSR₄, or C(═NR₄)R₄ ; R₇ is H, C₁ -C₂₀ alkyl, C₂ -C₂₀ alkenyl, C₂ -C₂₀ alkynyl, phenyl or phenyl substituted with C₁ -C₃ alkyl, OR₂, Z, N(R₂)₂, or CF₃ ; or benzyl; X is S; Z is halogen; and n is 1;which process comprises treating a cyclic hemiacetal of the corresponding 15-oxa-dihydrolanosterol (X═O) with hydrogen sulfide and boron trifluoride etherate in a suitable reaction medium, under suitable reaction conditions, followed by reaction of the unisolated cyclic thioacetal intermediate with a trialkylsilane to yield the desired 15-thiadihydrolanosterol.
 56. The process of claim 55, wherein 15-thiadihydrolanesterol (R₃ ═CH₃) is formed.
 57. The process of claim 55, wherein 4,4-Dimethyl-15-thia-5α-cholest-8-en-3β-ol (R₃ ═H) is formed.
 58. The process of claim 55, wherein 4,4-dimethyl-15-thia-14α-vinyl-5α-cholest-8-en-3β-ol (R₃ ═CH═CH₂) is formed. 